Exodus 34:15

34:15 Be careful not to make a covenant with the inhabitants of the land, for when they prostitute themselves to their gods and sacrifice to their gods, and someone invites you, you will eat from his sacrifice;

Numbers 15:39

15:39 You must have this tassel so that you may look at it and remember all the commandments of the Lord and obey them and so that you do not follow after your own heart and your own eyes that lead you to unfaithfulness.

James 4:4

4:4 Adulterers, do you not know that friendship with the world means hostility toward God? So whoever decides to be the world’s friend makes himself God’s enemy.

Revelation 17:1-5

The Great Prostitute and the Beast

17:1 Then one of the seven angels who had the seven bowls came and spoke to me. “Come,” he said, “I will show you the condemnation and punishment of the great prostitute who sits on many waters, 17:2 with whom the kings of the earth committed sexual immorality and the earth’s inhabitants got drunk with the wine of her immorality.” 17:3 So he carried me away in the Spirit to a wilderness, and there I saw a woman sitting on a scarlet beast that was full of blasphemous names and had seven heads and ten horns. 17:4 Now the woman was dressed in purple and scarlet clothing, and adorned with gold, precious stones, and pearls. She held in her hand a golden cup filled with detestable things and unclean things from her sexual immorality. 17:5 On her forehead was written a name, a mystery: “Babylon the Great, the Mother of prostitutes and of the detestable things of the earth.”