As we say around here, other religions are spelled “D-O,” because they teach that people have to do a bunch of religious rituals to try to please God. But Christianity is spelled “D-O- N-E” because Christ has done it all on the cross — and we just need to receive Him.
This distinction is starkly demonstrated by comparing a parable taught by Jesus with a similar story found in Buddhist literature. Both stories involve sons who became rebellious and left home, but who then saw the error of their ways and decided to come back and be reconciled with their families.
In the Buddhist story, the errant son is required to work off the penalty for his past misdeeds by spending years in servitude. But you know how the Christian parable of the Prodigal Son ends — with the repentant son being warmly welcomed home by his loving father and being given undeserved grace and forgiveness.