Since therefore the children share in flesh and blood, he himself likewise partook of the same things, that through death he might destroy the one who has the power of death, that is, the devil, and deliver all those who through fear of death were subject to lifelong slavery. (Hebrews 2:14,15 ESV)
Human
Recently, in a dramatic presentation, our cast learned that one of our players was no longer able to take part. We found a replacement. She is a young lady of similar age, deportment, and ability. We did not replace our actor with a kitten, an old man, or a tree. Only like can replace like.
Sometimes I prepare a particular casserole for our Wednesday church dinner. Once I was unable to purchase corn, a necessary ingredient. Instead I used peas. But I did not replace the corn with meatballs, tulips, or pebbles. Only like can replace like.
Last week, some IT problems stranded large numbers of travelers. When their flights were cancelled, they did not receive new luggage, potato salad, or complementary tickets to a movie theater. Only like can replace like.
When the One True Living God needed to grant His people absolute forgiveness, To remain Just, He needed, though, to punish someone. And so He chose a replacement.
He could not kill an animal in our place. Only like can replace like. (The Old Testament Sacrifices did not grant forgiveness, but only pointed the way to Christ’s substitutionary atonement.)
He could not kill Himself in our place. Divinity is not the same as humanity, and would not have sufficed. Only like can replace like.
He could not destroy creation itself. Only like can replace like.
So was born the Christ. Fully divine, yes. But fully human so that like can replace like.
Anything else would make our forgiveness incomplete.
When we feel insecure about the sureness of our forgiveness, remember that God justly, perfectly, wisely, lovingly, and necessarily replaced like with like.