Deuteronomy 13:2

וּבָ֤א הָאוֹת֙ וְהַמּוֹפֵ֔ת אֲשֶׁר־דִּבֶּ֥ר אֵלֶ֖יךָ לֵאמֹ֑ר נֵֽלְכָ֞ה אַחֲרֵ֨י אֱלֹהִ֧ים אֲחֵרִ֛ים אֲשֶׁ֥ר לֹֽא־יְדַעְתָּ֖ם וְנָֽעָבְדֵֽם׃

καὶ ἔλθῃ τὸ σημεῖον ἢ τὸ τέρας ὃ ἐλάλησεν πρὸς σὲ λέγων Πορευθὼμεν καὶ λατρεύσωμεν θεοῖς ἑτέροις οὓς οὐκ οἴδατε·

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

Y acaeciere la señal ó prodigio que él te dijo, diciendo: Vamos en pos de dioses ajenos, que no conociste, y sirvámosles;

and if the sign or wonder he has spoken to you comes about, but he says, “ Let us follow other gods ( which you have not known) and let us worship them,”