In bringing many sons and daughters to glory, it was fitting that God, for whom and through whom everything exists, should make the pioneer of their salvation perfect through what he suffered. Hebrews 2:10
The earthly life of Jesus is referred to in one phrase, perfect through what he suffered.
Was he not perfect when he came? When Jesus was a babe in Bethlehem’s manger, was he not perfect even then? When he was tempted in the desert and Satan tried to turn him from the cross, was he not already perfect? When he was feeding the five thousand, in compassionate ministry to the hungry multitudes, was he not perfect? Why then does it say he was perfected by suffering?