Deuteronomy 32:38

lest you cut a covenant with the inhabitants of the land, and they play the harlot with their gods and sacrifice to their gods, and one of them invite you to eat of his sacrifice,

Indeed they called the people to the sacrifices of their gods, and the people ate and bowed down to their gods.

“Where then are your prophets who prophesied to you, saying, ‘The king of Babylon will not come against you or against this land’?

But Daniel set in his heart that he would not defile himself with the king’s choice food or with the wine which he drank; so he sought permission from the commander of the officials that he might not defile himself.