The high priest must not have sexual relations with a widow even outside of marriage

so that he will not profane his offspring among his people; for I am the LORD who sanctifies him.'"

Hebrew

טו וְלֹא-יְחַלֵּל זַרְעוֹ, בְּעַמָּיו: כִּי אֲנִי יְהוָה, מְקַדְּשׁוֹ. {ס}

Greek

15 καὶ οὐ βεβηλώσει τὸ σπέρμα αὐτοῦ ἐν τῷ λαῷ αὐτοῦ· ἐγὼ κύριος ὁ ἁγιάζων αὐτόν.

• Parashah: Emor
• Sefer HaChinuch: 274
• Mishneh Torah: Holiness — Forbidden Sexual Relations

• Leviticus 21:15

Enumeration and classification from BibleData. The Greek is the Septuagint reading of the same verse, carried by the source for comparison.