Deuteronomy 13:9

כִּ֤י הָרֹג֙ תַּֽהַרְגֶ֔נּוּ יָֽדְךָ֛ תִּֽהְיֶה־בּ֥וֹ בָרִֽאשׁוֹנָ֖ה לַהֲמִית֑וֹ וְיַ֥ד כָּל־הָעָ֖ם בָּאַחֲרֹנָֽה׃

ἀναγγέλλων ἀναγγελεῖς περὶ αὐτοῦ, αἱ χεῖρές σου ἔσονται ἐπ’ αὐτὸν ἐν πρώτοις ἀποκτεῖναι αὐτόν, καὶ αἱ χεῖρες παντὸς τοῦ λαοῦ ἐπ’ ἐσχάτῳ·

Greek text from Swete's edition, CC BY-SA 4.0

Antes has de matarlo; tu mano será primero sobre él para matarle, y después la mano de todo el pueblo.

Instead, you must surely kill him. Your hand must be the first against him to put him to death, and then the hands of all the people.