You owe him a life, just in a different way., you owe him a fruitful life, a life lived in abundance and in inspiration of his sacrifice. It's only the whole of history and the most important event in human kind that rests on it, you know
*How do you deduce that we don't owe him a life anyway? In all reality, it is grace. We owed Him life right from the forbidden fruit. It's all about eye for eye, you see. That is why Mosaic law was so harsh. There was no grace in it, only literal perfection. You were stoned to death for adultery, for example. Cause and effect, revelation without grace., these are the things to keep in mind here and such is the importance of God's sacrifice.
Sorry if I was misleading.