(12,13) if ye... make marriages with them... the Lord your God will no more drive out. — The common-sense of this warning is manifest. The God of Israel cannot treat as His enemies those whom Israel has united with itself, unless He also makes war on Israel. It was a long time before Israel learned the lesson how to live in the world without being of the world. It was not learnt until after the Babylonish captivity, and when learnt, it soon developed into a Pharisaical exclusiveness, which produced the very opposite effect to that which the law was intended to have.
Related Commentaries of Joshua 23:12
Joshua 23:12-13
12 Else if ye do in any wise go back, and cleave unto the remnant of these nations, even these that remain among you, and shall make marriages with them, and go in unto them, and they to you:
13 Know for a certainty that the LORD your God will no more drive out any of these nations from before you; but they shall be snares and traps unto you, and scourges in your sides, and thorns in your eyes, until ye perish from off this good land which the LORD your God hath given you.