John 10:28-30
it is I that give them eternal life, and they shall never perish, neither shall any one force them out of my hand.
John 21:17
Jesus said to him the third time, Simon son of Jonas, do you love me? Peter was grieved at his asking him the third time, "do you love me?" and he said to him, Lord, you know all things; you know that I love you. Jesus said to him, feed my sheep.
2 Corinthians 1:12
for this is to me matter of glorying, the testimony of my conscience, that without artifice, and with religious sincerity, not by worldly wisdom, but by God's favourable assistance I have behaved my self towards all men, but more particularly to you.
1 Thessalonians 2:10
you are witnesses, and God is so too, how holy, how just and irreproachable our behaviour was to you, who believe.