en_tn/deu/27/22.md

General Information:

Moses continues telling the Levites and the people what they must say.

May the man be cursed

This may be stated in active form. See how you translated this in Deuteronomy 27:16. Alternate translation: "May Yahweh curse the man" (See: rc://en/ta/man/jit/figs-activepassive)

who lies with his sister

Here "lies with" is a euphemism. Alternate translation: "who has sexual relations with his sister" (See: rc://en/ta/man/jit/figs-euphemism)

the daughter of his father, or with the daughter of his mother

This means a man cannot have sexual relations with his sister, even if she has a different mother or father.