'Detestable' in the Bible

After these things had been done, the leaders approached me and said: “The people of Israel, the priests, and the Levites have not separated themselves from the surrounding peoples whose detestable practices are like those of the Canaanites, Hittites, Perizzites, Jebusites, Ammonites, Moabites, Egyptians, and Amorites.

You gave through Your servants the prophets, saying: “The land you are entering to possess is an impure land. The surrounding peoples have filled it from end to end with their uncleanness by their impurity and detestable practices.

should we break Your commands again and intermarry with the peoples who commit these detestable practices? Wouldn’t You become so angry with us that You would destroy us, leaving no survivors?