John 3:2
He came to Jesus by night and said, "Rabbi, we know that you are a teacher from God; for no one can do these miracles which you are doing, unless God is with him.
John 16:30
Now we know that you have all knowledge, and do not need to be pressed with questions. Through this we believe that you came from God."
John 2:11
This, the first of His miracles, Jesus performed at Cana in Galilee, and thus displayed His glorious power; and His disciples believed in Him.
John 4:42-48
and they said to the woman, "We no longer believe in Him simply because of your statements; for we have now heard for ourselves, and we know that this man really is the Saviour of the world."
John 11:15
"Lazarus is dead; and for your sakes I am glad I was not there, in order that you may believe. But let us go to him."
John 11:42
I know that Thou always hearest me; but for the sake of the crowd standing round I have said this--that they may believe that Thou didst send me."
John 15:24
If I had not done among them, as I have, such miracles as no one else ever did, they would have had no sin; but they have in fact seen and also hated both me and my Father.
1 Thessalonians 2:13
And for this further reason we render unceasing thanks to God, that when you received God's Message from our lips, it was as no mere message from men that you embraced it, but as--what it really is--God's Message, which also does its work in the hearts of you who believe.
1 John 2:21
I have written to you, not because you are ignorant of the truth, but because you know it, and you know that nothing false comes from the truth.