No, Christ in your heart causes you to believe based on that experience.
Agrippa was almost persuaded to be a Christian. You see, one doesn’t become a Christian before they are fully persuaded through the preaching of the cross.
Acts 26
26 For the king knoweth of these things, before whom also I speak freely: for I am persuaded that none of these things are hidden from him; for this thing was not done in a corner.
27 King Agrippa, believest thou the prophets? I know that thou believest.
28 Then Agrippa said unto Paul,
Almost thou persuadest me to be a Christian.
Romans 4
21
And being fully persuaded that, what he had promised, he was able also to perform.
22 And therefore it was imputed to him for righteousness.