“That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.” Rom. 10:9
One of the meanings of the word “believe” is to have conviction. Conviction is that inner voice or impression that insists you just can’t do something you shouldn’t do, or you know you just can’t go that way. If you obey your godly convictions, you won’t sin. If you don’t sin, you don’t have to face being convicted.