Mark 8:34-37

34And having called the crowd with his disciples, he said to them, Whoever desires to come after me, let him deny himself, and take up his cross and follow me.

35For whosoever shall desire to save his life shall lose it, but whosoever shall lose his life for my sake and the gospel's shall save it.

36For what shall it profit a man if he gain the whole world and suffer the loss of his soul?

37for what should a man give in exchange for his soul?