A life for a life
According to the Chicago Tribune, on June 22, 1997, parachute instructor Michael Costello, forty-two, of Mt. Dora, Florida, jumped out of an airplane at 12,000 feet altitude with a novice skydiver named Gareth Griffith, age twenty-one.
The novice would soon discover just how good his instructor was, for when the novice pulled his ripcord, his parachute failed. Plummeting toward the ground, he faced certain death. But the instructor did an amazing thing. Just before hitting the ground, the instructor rolled over so that he would hit the ground first and the novice would land on top of him. The instructor was killed instantly. The novice fractured his spine, but he was not paralyzed and lived. One man gave his life for another. One substituted himself even unto death so that the other may live.
So it was at the cross, Jesus died on the cross to take the punishment for our sins, and if we will put our trust in him we will likewise be saved.
Truly, truly, I say to you, whoever hears my word and believes him who sent me has eternal life. He does not come into judgment, but has passed from death to life. John 5:24.