In terms of Jesus' sacrifice, anyone familiar with the Bible will first think of His sacrificial death at Calvary to atone for the sins of mankind. His crucifixion was indeed the greatest act of sacrifice in the history of the world, a perfect demonstration of His own teaching in John 15:13, "Greater love has no one than this, than to lay down one's life for his friends." His supreme offering of His sinless life paid the terrible cost of all of mankind's sins for all time (see Hebrews 9:26-28; 10:10, 12, 14).