God so loved the world, that is the cosmos, the universe and its order, that He gave His unique Son so that whoever believes into Him should not die but should have the life of the coming age, an uncreated life that does not end. And how do we believe into Him? It is "into" in the original language.

Well, who is Christ?  Christ is the Head of the Body in Heaven, yes.  Christ is also a many-membered Body here on Earth.  When we serve each other, we do serve Him. When we build up each other, as you are doing, we build Him up.  1 Corinthians 12:12 For as the body is one, and hath many members, and all the members of that one body, being many, are one body: so also is Christ.  Paul is comparing the physical human body to the Church, the members of the physical body and the members of the Church.  Then he calls the Church, Christ. And the Church is Christ.  It is the Body of Christ in a very real sense.  It is Christ the Body on Earth that is joined to Christ the Head in Heaven.

To believe into Christ, a person must first be born again.  From that point, this person begins to believe Christ rather than believing all the teachings of men and evil spirits.  As the Holy Spirit unfolds His revelation, the orders that are so clearly shown in the Bible become real and understandable to the believer.  God speaks to every person all the time.  We were created to be directed, as God utters His Word to us, and powered by the Holy Spirit from moment to moment so that God is doing His Works through us as we yield to Him in submission to His Love.  Most people don't listen to God at all.  A remnant, a small company of believers, are beginning to learn to listen and respond in God's faith which comes as God utters His Word to us.

(some caveats about hearing God's Voice)

Believing into Christ is a process of:

1. discerning what is and what is not the Body of Christ,
2. and discerning what is and what is not your own particular place of service within this Body of Christ,
3. and finally to become what God created you to become in the Body of Christ.

See, sayeth He, that you build all things according to the pattern. God is speaking to us about the pattern that He has given in Scripture. The foundation of the Church must be laid first. First Christ, then the apostles built on Christ as foundation of the Church. These apostles were restored to the Church in the late 1940s. God has been restoring His Church to its original glory and purpose since it left God's pattern in the early centuries after Jesus ascended and gave gifts to men. May God bless you in this work.

John 3:16 commented: For God so loved the cosmos[2889 kosmos], that he gave his only begotten Son, that whoever believes into [1519 eis] Him should not perish, but have eonian [166 aionios] life.

Definitions:

aphesis af'-es-is
1) release from bondage or imprisonment
2) forgiveness or pardon, of sins (letting them go as if they had never been committed), remission of the penalty

eis ice a primary preposition
In the translation known as the Authorized Version, this has been translated as into 573 times, to 281 times, to 207 times, for 140 times, in 138 times, on 58 times, toward 29 times, against 26 times, and as other words 322 times. The word appears a total of 1,774 in the original text of the Bible.
1) into, unto, to, towards, for, among

Where eis is translated as "for" it would sometimes be better translated as "into." For example, in Acts 2:38, the Authorized Version says: 38 Then Peter said to them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins , and ye shall receive the gift of the Holy Ghost .

metanoeo met-an-o-eh'-o
1) to change one's mind, i.e. to repent
2) to change one's mind for better, heartily to amend with abhorrence of one's past sins

baptizo bap-tid'-zo
1) to dip repeatedly, to immerse, to submerge (of vessels sunk)
2) to cleanse by dipping or submerging, to wash, to make clean with water, to wash one's self, bathe
3) to overwhelm
++++
Not to be confused with 911, bapto. The clearest example that shows
the meaning of baptizo is a text from the Greek poet and physician Nicander, who lived about 200 B.C. It is a recipe for making pickles and is helpful because it uses both words. Nicander says that in order to make a pickle, the vegetable should first be 'dipped' (bapto) into boiling water and then 'baptised' (baptizo) in the vinegar solution. Both verbs concern the immersing of vegetables in a solution. But the first is temporary. The second, the act of baptising the vegetable, produces a permanent change.
When used in the New Testament, this word more often refers to our union and identification with Christ than to our water baptism. e.g. #Mr 16:16. 'He that believes and is baptised shall be saved'. Christ is saying that mere intellectual assent is not enough. There must be a union with him, a real change, like the vegetable to the pickle!
(Bible Study Magazine, James Montgomery Boice, May 1989).

onoma on'-om-ah
1) name: univ. of proper names
2) the name is used for everything which the name covers, everything the thought or feeling of which is aroused in the mind by mentioning, hearing, remembering, the name, i.e. for one's rank, authority, interests, pleasure, command, excellences, deeds etc.
3) persons reckoned up by name
4) the cause or reason named: on this account, because he suffers as a Christian, for this reason

Iesous ee-ay-sooce'
Jesus =" Jehovah is salvation" or completely translated, "I AM that I AM is salvation"

dorea do-reh-ah'
1) a gift