2 Kings 17:36

But the Lord, which brought you up out of the land of Egypt,
with a great power, and a stretched out arm
Which is observed, to show the obligations they lay under, in point of gratitude, to serve the Lord:

him shall ye fear, and him shall ye worship, and to him shall ye do
sacrifice:
and him only, and not other gods; none but he being the object of religious fear and divine worship, and to whom sacrifices should be offered.