Hittites: Intermarry with the Israelites
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Judges 3:5–7
Thus the Israelites continued to live among the Canaanites, Hittites, Amorites, Perizzites, Hivites, and Jebusites. / And they took the daughters of these people in marriage, gave their own daughters to their sons, and served their gods. / So the Israelites did evil in the sight of the LORD; they forgot the LORD their God and served the Baals and the Asherahs.
Ezra 9:1
After these things had been accomplished, the leaders approached me and said, “The people of Israel, including the priests and Levites, have not kept themselves separate from the surrounding peoples whose abominations are like those of the Canaanites, Hittites, Perizzites, Jebusites, Ammonites, Moabites, Egyptians, and Amorites.