Strong G5623 ὠφελέω ōpheleō · to help

John

1. John 6:63
   It is the spirit that quickeneth; the flesh profiteth nothing: the words that I speak unto you, they are spirit, and they are life.
2. John 12:19
   The Pharisees therefore said among themselves, Perceive ye how ye prevail nothing? behold, the world is gone after him.