Exodus 23:32
And thou shalt make none covenant with them nor with their gods.
Exodus 34:12
Take heed to thyself, that thou make no covenant with the inhabiters of the land whither thou goest lest it be cause of ruin among you.
Deuteronomy 7:2
and when the LORD thy God hath set them before thee that thou shouldest smite them: see that thou utterly destroy them and make no covenant with them nor have compassion on them.
Exodus 34:15
lest, if thou make any covenant with the inhabiters of the land, when they go a whoring after their gods and do sacrifice unto their gods, they call thee and thou eat of their sacrifice;
Numbers 25:1-2
And Israel dwelt in Shittim, and the people began to commit whoredom with the daughters of Moab,
Deuteronomy 7:16
Thou shalt bring to nought all nations which the LORD thy God delivereth thee; thine eye shall have no pity upon them neither shalt thou serve their gods, for that shall be thy decay.
Joshua 9:14-23
And the men took of their victuals, and counseled not with the mouth of the LORD.
2 Samuel 21:1-2
Then there fell a hunger in the days of David: three years, year by year. And David enquired of the LORD. And the LORD answered, "It is for Saul's sake and the house of blood, because he slew the Gibeonites."
Psalm 106:35
but were mingled among the Heathen, and learned their works -
2 Corinthians 6:15
What concord hath Christ with Belial? Either, what part hath he that believeth with an infidel?