Ezra 6:21
21 It was eaten by the people of Israel who had returned from exile, and also by every one who had joined them and nseparated himself from the ouncleanness of the peoples of the land to worship the Lord, the God of Israel.
Ezra 9:1
Ezra Prays About Intermarriage
1 After these things had been done, the officials approached me and said, “The people of Israel and the priests and the Levites have not aseparated themselves from the peoples of the lands with their abominations, from the Canaanites, the Hittites, the Perizzites, the Jebusites, the Ammonites, the Moabites, the Egyptians, and the Amorites.