To say John 3:16 is true is correct, but to say it is the end of story.....this is an error.
Baptist doctrine preaches to only believe in Jesus....but they don't have a clue who or what Jesus is.
He is the Word of God made manifest....the whole Word of God, every Word in the Bible.
There is much more to the story of a christians walk than being justifed by faith.
Theres living a clean and holy sanctified life, and then being filled with the Baptism of the Holy Spirit of God.
This just gets you born into the kingdom of God as a little babe.
So that you can then begin to "see" or understand the spiritual meaning of the scriptures withholden from the carnal minds of men.
Then there is growing in grace and knowledge of the Lord, studying to show thyself approved, putting on the whole armour of God, the sword of the Spirit, the shield of faith, the helmet of salvatoin, ect...
You must grow up into the image of God, into the stature of a perfect man...all theses things and more are in the scriptures and are only made possible through the sacrifice of Jesus at the cross.
These things then being available to the christian, they are required, and these being a part of the Word of God....constitute a part of Jesus Christ Himself, because He is the Word.
Jesus come to unite with a bride in this day, and she must also be the Word by putting on the "wedding garmet"
His wife hath made herself ready....Rev. 19.
Do not attempt to say , all I have to do is believe in Jesus.
You cannot even call Jesus the Christ without the Spirit of God.
1 Corinthians 12:3 - Wherefore I give you to understand, that no man speaking by the Spirit of God calleth Jesus accursed: and that no man can say that Jesus is the Lord, but by the Holy Ghost.
They the are led of the Spirit of God, they are called the sons of God.
There is much more to the story of becomeing a son of God in this day, than the denominations tell us, they don't want to be "controversial" because they might lose members.....
They're members might have to suffer in obediance to the Word to learn the charcacter of God. This might chase some of them away.....
What....? No one told you theses things....they are all in the scriptures...New Testement.
Because they receive not a love of the truth God will send them strong delusion, that they might believe a lie and be damned by it.
You must reach maturity as a son of God, and reach the place of approval unto adoption and the placing of sons....into authority in God's kingdom.
Romans 8:14
" For as many as are led by the Spirit of God, they are the sons of God. 15 For ye have not received the spirit of bondage again to fear; but ye have received the Spirit of adoption, whereby we cry, Abba, Father. 16 The Spirit itself beareth witness with our spirit, that we are the children of God: 17 And if children, then heirs; heirs of God, and joint-heirs with Christ; if so be that we suffer with him, that we may be also glorified together."
Eph. 1:4
"According as he hath chosen us in him before the foundation of the world, that we should be holy and without blame before him in love: 5 Having predestinated us unto the adoption of children by Jesus Christ to himself, according to the good pleasure of his will, 6 To the praise of the glory of his grace, wherein he hath made us accepted in the beloved. 7 In whom we have redemption through his blood, the forgiveness of sins, according to the riches of his grace; 8 Wherein he hath abounded toward us in all wisdom and prudence; 9 Having made known unto us the mystery of his will, according to his good pleasure which he hath purposed in himself: 10 That in the dispensation of the fulness of times he might gather together in one all things in Christ, both which are in heaven, and which are on earth; even in him: 11 In whom also we have obtained an inheritance, being predestinated according to the purpose of him who worketh all things after the counsel of his own will: 12 That we should be to the praise of his glory, who first trusted in Christ. 13 In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise, 14 Which is the earnest of our inheritance until the redemption of the purchased possession, unto the praise of his glory. 15 Wherefore I also, after I heard of your faith in the Lord Jesus, and love unto all the saints, 16 Cease not to give thanks for you, making mention of you in my prayers; 17 That the God of our Lord Jesus Christ, the Father of glory, may give unto you the spirit of wisdom and revelation in the knowledge of him: 18 The eyes of your understanding being enlightened; that ye may know what is the hope of his calling, and what the riches of the glory of his inheritance in the saints, 19 And what is the exceeding greatness of his power to us-ward who believe, according to the working of his mighty power, 20 Which he wrought in Christ, when he raised him from the dead, and set him at his own right hand in the heavenly places, 21 Far above all principality, and power, and might, and dominion, and every name that is named, not only in this world, but also in that which is to come: 22 And hath put all things under his feet, and gave him to be the head over all things to the church, 23 Which is his body, the fulness of him that filleth all in all."