Luke 15:18–19
I will arise and go to my father, and I will say to him, “Father, I have sinned against heaven and before you. I am no longer worthy to be called your son. Treat me as one of your hired servants.”…
Romans 8:15
For you did not receive the spirit of slavery to fall back into fear, but you have received the Spirit of adoption as sons, by whom we cry, “Abba! Father!”
Romans 8:16–17
we are children of God, and if children, then heirs—heirs of God and fellow heirs with Christ, provided we suffer with him in order that we may also be glorified with him.