Definition:

aionios is an adjective describing a certain type of life, a certain type of fire, etc. It means eonian: related to the age or eon, according to the age or eon, or of the age or eon. The word, aionios is the adjective form of the noun, aion, and the word, aion gives a more clear meaning or the word and what it means. It could also mean eonian, age-lasting, but that interpretation usually does not work with other Scriptures that make it clear that of the eon or age would be a better translation.

There is considerable division in Babylon over the use of aionios. There are many who add to Scripture and remove from Scripture by the power of the natural mind. This happens with those who come from either extreme, the TULIP side or the Unitarian/Universalist side. (Read More) It is important to note that some things are eternal. Eternal life will not end either during time or in eternity. There are Scriptures that make this plain. However, those Scriptures that speak of eonian life should not be used to prove this. They are talking about a certain type of life. This is the life of the coming age, an uncreated life that goes into eternity.

Sometimes, this word is translated as related to an age or eon. Sometimes it is translated as something indicating something that is eternal. This conflict in the two conflicting translations centers on a misunderstanding of the logical law of non-contradiction. The law of non-contradiction is very simple. Two mutually exclusive things cannot both be true at the same time in the same sense. Here are two examples of where the problem is seen. "But the God of all grace, who hath called us to His eonian aionios glory... " 1 Peter 5:10 Some claim that the word, aionios, cannot possibly mean an age because God's Kingdom has no end so that would constitute a contradiction. "In hope of eternal life, which God, that cannot lie, promised before the aionios time; " Titus 1:2 Here, the supposed problem is that the word, aion could not possibly mean eternity because there is no end of eternity. In fact, in these cases, even translations that consistently translate "aionios" as ever or eternity change the translation of the word to world or age.

Is it a contradiction to translate aionios as of or related to an age or eon in 1 Peter 5:10? If God's glory is eternal, will it be throughout the ages? If God is the God of eternity, is He the God of the ages as well? Yes. God is the God of all the ages. If God is the God of all the universe is He the God of you as well? Yes. God is the God of you and of the universe. There is no contradiction.

Is it a contradiction to translate aionios as for eternal in Titus 1:2? We don't fully understand eternity, yet we know that there cannot be a time before eternity. There is a contradiction here.

Someone may say, "Well, then it should be translated differently in different places. Then, who decides what the translation is in each of those places, and how do they decide? The must decice either by revelation or by speculation. If one says to you that they have it by revelation, will you believe them? If someone is merely speculating or supposing, why should they believe tha they are correct?

Problems arise whenever anyone goes beyond Scripture. That is, when anyone adds to Scripture or takes from Scripture. A theology has been developed that goes beyond the Bible on the one hand by saying such things as "there is no hell," "there is a hell, but hell is not all that bad," "God would never correct anyone through punishment," or "all ways lead to God." I'm sure that there are other examples of this extreme view. On the other hand, a robust theology has developed beyond the Bible that makes the Scripture conflict with itself. This is a problem if we are to believe the entire Bible. This extreme dogma causes some theologians to find extra-biblical reasons to rationalize away the Scriptures that plainly say such things as, "As in Adam all die, so in Christ shall all be made alive." Some people do not, as a result, believe in the restitution of all things, which is also a plain teaching of Scripture just as Hell is a plain teaching of Scripture. Sometimes, the best answer is, "We believe it all, but God has not yet told us how He is going to do this."

We get some help form Strong's definitions--keep in mind that a concordance or a lexicon is not the Bible. It is an opinion. Strongs gives the following:

166 αιωνιος aionios ahee-o'-nee-os
1) without beginning and end, that which always has been and always will be
2) without beginning
3) without end, never to cease, everlasting

Matthew 18:8 Wherefore if thy hand or thy foot offend thee, cut them off, and cast them from thee: it is better for thee to enter into life halt or maimed, rather than having two hands or two feet to be cast into everlasting fire. (KJV)
Matthew 18:8 Wherefore if thy hand or thy foot offend thee, cut them off, and cast them from thee: it is better for thee to enter into life halt or maimed, rather than having two hands or two feet to be cast into eonian fire. (Correct)

Suddenly, this part of the Bible makes sense when words are translated correctly.

Matthew 18:8 Wherefore if thy hand or thy foot offend thee, cut them off, and cast them from thee: it is better for thee to enter into life halt or maimed, rather than having two hands or two feet to be cast into eonian fire.
Matthew 19:16 And, behold, one came and said to him, Good Master, what good thing shall I do, that I may have eonian life?
Matthew 19:29 And every one that hath forsaken houses, or brethren, or sisters, or father, or mother, or wife, or children, or lands, for my name's sake, shall receive an hundredfold, and shall inherit eonian life.
Matthew 25:41 Then shall he say also to them on the left hand, Depart from me, ye cursed, into eonian fire, prepared for the devil and his angels:
Matthew 25:46 And these shall go away into eonian punishment: but the righteous into life eonian .
Mark 3:29 But he that shall blaspheme against the Holy Ghost does not have forgiveness in the eon [165 aion], but is in danger of eonian [166 aionios] judgment:
Mark 10:17 And when he was gone forth into the way, there came one running, and kneeled to him, and asked him, Good Master, what shall I do that I may inherit eonian life?
Mark 10:30 But he shall receive a hundredfold now in this time, houses, and brethren, and sisters, and mothers, and children, and lands, with persecutions; and in the eon [165 aion] to come eonian [166 aionios] life.
Luke 10:25 And, behold, a certain lawyer stood up, and tempted him, saying, Master, what shall I do to inherit eternal life?
Luke 16:9 And I say to you, Make to yourselves friends of the mammon of unrighteousness; that, when ye fail, they may receive you into eonian habitations.
Luke 18:18 And a certain ruler asked him, saying, Good Master, what shall I do to inherit eonian life?
Luke 18:30 Who shall not receive manifold more in this present time, and in the eon [165 aion] to come life eonian [166 aionios].
John 3:15 That whosoever believeth in him should not perish, but have eonian life.
John 3:16 For God so loved the kosmos, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have eonian life.
John 3:36 He that believeth on the Son hath eonian life: and he that believeth not the Son shall not see life; but the wrath of God abideth on him.
John 4:14 But Whoever drinks of the water that I shall give him shall not thirst to the eon [165 aion]; but the water that I shall give him shall be in him a well of water springing up into eonian [166 aionios] life.
John 4:36 And he that reapeth receiveth wages, and gathereth fruit to life eonian : that both he that soweth and he that reapeth may rejoice together.
John 5:24 Verily, verily, I say to you, He that heareth my word, and believeth on him that sent me, hath eonian life, and shall not come into condemnation; but is passed from death to life.
John 5:39 Search the scriptures; for in them ye think ye have eonian life: and they are they which testify of me.
John 6:27 Labour not for the meat which perisheth, but for that meat which endureth to eonian life, which the Son of man shall give to you: for him hath God the Father sealed.
John 6:40 And this is the will of him that sent me, that every one which seeth the Son, and believeth on him, may have eonian life: and I will raise him up at the last day.
John 6:47 Verily, verily, I say to you, He that believeth on me hath eonian life.
John 6:54 Whoso eateth my flesh, and drinketh my blood, hath eonian life; and I will raise him up at the last day.
John 6:68 Then Simon Peter answered him, Lord, to whom shall we go? thou hast the words of eonian life.
John 10:28 And I give to them eonian [166 aionios] life; and they shall not perish to the eon [165 aion], neither shall any man pluck them out of my hand.
John 12:25 He that loves his life shall lose it; and he that hates his life in this cosmos[2889 kosmos] shall keep it to life eonian [166 aionios].
John 12:50 And I know that his commandment is life eonian : whatsoever I speak therefore, even as the Father said to me, so I speak.
John 17:2 As thou hast given him power over all flesh, that he should give eonian life to as many as thou hast given him.
John 17:3 And this is life eonian , that they might know thee the only true God, and Jesus Christ, whom thou hast sent.
Acts 13:46 Then Paul and Barnabas waxed bold, and said, It was necessary that the word of God should first have been spoken to you: but seeing ye put it from you, and judge yourselves unworthy of eonian life, lo, we turn to the Gentiles.
Acts 13:48 And when the Gentiles heard this, they were glad, and glorified the word of the Lord: and as many as were ordained to eonian life believed.
Romans 2:7 To them who by patient continuance in well doing seek for glory and honour and immortality, eonian life:
Romans 5:21 That as sin hath reigned to death, even so might grace reign through righteousness to eonian life by Jesus Christ our Lord.
Romans 6:22 But now being made free from sin, and become servants to God, ye have your fruit to holiness, and the end eonian life.
Romans 6:23 For the wages of sin is death; but the gift of God is eonian life through Jesus Christ our Lord.
Romans 16:25 Now to him that is of power to stablish you according to my gospel, and the preaching of Jesus Christ, according to the mystery, which was kept secret since time eonian ,
Romans 16:26 But now is made manifest, and by the scriptures of the prophets, according to the commandment of the eonian God, made known to all nations for the obedience of faith:
2 Corinthians 4:17 For our light affliction, which is but for a moment, worketh for us a far more exceeding and eonian weight of glory;
2 Corinthians 4:18 While we look not at the things which are seen, but at the things which are not seen: for the things which are seen are temporal; but the things which are not seen are eonian .
2 Corinthians 5:1 For we know that if our earthly house of this tabernacle were dissolved, we have a building of God, an house not made with hands, eonian in the heavens.
Galatians 6:8 For he that soweth to his flesh shall of the flesh reap corruption; but he that soweth to the Spirit shall of the Spirit reap life eonian .
2 Thessalonians 1:9 Who shall be punished with eonian destruction from the presence of the Lord, and from the glory of his power;
2 Thessalonians 2:16 Now our Lord Jesus Christ himself, and God, even our Father, which hath loved us, and hath given us eonian consolation and good hope through grace,
1 Timothy 1:16 Howbeit for this cause I obtained mercy, that in me first Jesus Christ might shew forth all longsuffering, for a pattern to them which should hereafter believe on him to life eonian .
1 Timothy 6:12 Fight the good fight of faith, lay hold on eonian life, whereunto thou art also called, and hast professed a good profession before many witnesses.
1 Timothy 6:16 Who only hath immortality, dwelling in the light which no man can approach unto; whom no man hath seen, nor can see: to whom be honour and power eonian . Amen.
1 Timothy 6:19 Laying up in store for themselves a good foundation against the time to come, that they may lay hold on eonian life.
2 Timothy 1:9 Who has saved us, and called us with a holy calling, not according to our works, but according to his own purpose and grace, which was given us in Christ Jesus before the times eonian [166 aionios],2 Timothy 2:10 Therefore I endure all things for the elect's sakes, that they may also obtain the salvation which is in Christ Jesus with eternal glory.
Titus 1:2 In hope of eternal life, which God, that cannot lie, promised before the eonian time;
Titus 3:7 That being justified by his grace, we should be made heirs according to the hope of eonian life.
Philemon 1:15 For perhaps he therefore departed for a season, that thou shouldest receive him eonian ;
Hebrews 5:9 And being made perfect, he became the author of eonian salvation to all them that obey him;
Hebrews 6:2 Of the doctrine of baptisms, and of laying on of hands, and of resurrection of the dead, and of eonian judgment.
Hebrews 9:12 Neither by the blood of goats and calves, but by his own blood he entered in once into the holy place, having obtained eonian redemption for us.
Hebrews 9:14 How much more shall the blood of Christ, who through the eonian Spirit offered himself without spot to God, purge your conscience from dead works to serve the living God?
Hebrews 9:15 And for this cause he is the mediator of the new testament, that by means of death, for the redemption of the transgressions that were under the first testament, they which are called might receive the promise of eonian inheritance.
Hebrews 13:20 Now the God of peace, that brought again from the dead our Lord Jesus, that great shepherd of the sheep, through the blood of the eonian covenant,
1 Peter 5:10 But the God of all grace, who hath called us to his eonian glory by Christ Jesus, after that ye have suffered a while, make you perfect, stablish, strengthen, settle you.
2 Peter 1:11 For so an entrance shall be ministered to you abundantly into the eonian kingdom of our Lord and Saviour Jesus Christ.
1 John 1:2 (For the life was manifested, and we have seen it, and bear witness, and shew to you that eonian life, which was with the Father, and was manifested to us;)
1 John 2:25 And this is the promise that he hath promised us, even eonian life.
1 John 3:15 Whosoever hateth his brother is a murderer: and ye know that no murderer hath eonian life abiding in him.
1 John 5:11 And this is the record, that God hath given to us eonian life, and this life is in his Son.
1 John 5:13 These things have I written to you that believe on the name of the Son of God; that ye may know that ye have eonian life, and that ye may believe on the name of the Son of God.
1 John 5:20 And we know that the Son of God is come, and hath given us an understanding, that we may know him that is true, and we are in him that is true, even in his Son Jesus Christ. This is the true God, and eonian life.
Jude 1:7 Even as Sodom and Gomorrah, and the cities about them in like manner, giving themselves over to fornication, and going after strange flesh, are set forth for an example, suffering the vengeance of eonian fire.
Jude 1:21 Keep yourselves in the love of God, looking for the mercy of our Lord Jesus Christ to eonian life.
Revelation 14:6 And I saw another angel fly in the midst of heaven, having the eonian gospel to preach to them that dwell on the earth, and to every nation, and kindred, and tongue, and people,