John 10:28-30
and I give them eternal life; and they shall never perish, and no one shall take them out of my hand.
John 21:17
He said to him a third time: Simon, son of Jonah, do you love me? Peter was grieved because he said to him the third time, Do you love me? And he said to him: Lord, thou knowest all things, thou knowest that I love thee. Jesus said to him: Feed my sheep.
2 Corinthians 1:12
For the ground of our rejoicing is this: the testimony of our conscience that we have lived in the world more abundantly, indeed, for you in sincerity and godly purity, not in carnal wisdom, but in the grace of God.
1 Thessalonians 2:10
You are witnesses, and God also, in how holy and just and blameless a manner we conducted our selves among you that believe,