Joshua 23:12-13

Brenton(i) 12 For if ye shall turn aside and attach yourselves to these nations that are left with you, and make marriages with them, and become mingled with them and they with you, 13 know that the Lord will no more destroy these nations from before you; and they will be to you snares and stumbling-blocks, and nails in your heels, and darts in your eyes, until ye be destroyed from off this good land, which the Lord your God has given you.