en_tn/pro/21/17.md

Both verse 17 and verse 18 are a parallelism. (See: rc://en/ta/man/translate/figs-parallelism)

becomes ransom for ... is ransom for

To be or become the ransom for someone else means that you have to pay their financial debt or their moral penalty. AT: "will pay the debt of ... pays the debt of" or "will be punished instead of ... is punished instead of"

the treacherous

someone who cannot be trusted

the upright

See how you translated this in Proverbs 3:31.