Romans 5:16

And not as through one that sinned, so is the gift: for the judgment came of one unto condemnation, but the free gift came of many trespasses unto justification.

Paul was here pursuing a line of thought stressing the contrasts between Adam and Christ. In the verse immediately preceding, there was mentioned a contrast in quantity. Here the contrast is between the fact that condemnation resulted from the single sin of a single individual, and the fact that justification, on the other hand, applies, not to a single sin only, but to all sin.