6 Bible Verses about Adoption, Assurance Of

The Spirit itself (Greek:autos ho pneuma) (itself the Spirit) bears witness with our spirit (mind and heart), that we are children of God.

All who are led by the Spirit of God are sons of God.

For you have not received a spirit of bondage again causing fear, but you have received a spirit of adoption, whereby we cry, Father, Father! (Chaldee: Abba, meaning father).

Whoever is born of God does not practice sin! His seed abides in him and he cannot sin because he has been born of God. In this the children of God and the children of the devil are revealed. Whoever does not practice righteousness is not from God. He who does not love his brother is not from God. This is the message you heard from the beginning, that we should love one another!read more.
We should not be like Cain who was of the evil one, and killed his brother. Why did he murder him? It was because his works were evil, and his brother's were righteous. Do not be surprised, brothers, if the world hates you. We know that we have passed out of death into life, because we love the brothers. He who does not love abides in death. Whoever hates his brother is a murderer! You know that no murderer has everlasting life remaining in him. By this we know love, because he (Jesus) gave his life for us. We ought to lay down our lives for our brothers. Whoever has this world's goods and sees his brother in need, and shuts up his compassion from him, how does the love of God dwell in him?

My son, do not despise Jehovah's discipline or be weary of his correction.

You have forgotten the exhortation that reasons with you as to sons: My son, do not despise (regard lightly) discipline from Jehovah and do not lose heart when he corrects you. (Proverbs 3:11, 12) Jehovah disciplines those he loves. In fact he scourges every son (child) he receives. God deals with you like children. Endure discipline (instruction) (training). Who is the child whom a father does not discipline?read more.
If you are without discipline, you are illegitimate children, and not sons. Furthermore, we have had fathers of our flesh that corrected us, and we gave them respect. Shall we not much more be in subjection to the Father of spirits and live? They disciplined us for a few days for their own pleasure. He disciplines for our profit, that we might be partakers of his holiness. Now no discipline for the present seems to be joyous. In fact it seems grievous! Nevertheless, afterward it yields the peaceable fruit of righteousness to those who have been trained.