Numbers 33:55

55 “ ‘But if you do not drive out the inhabitants of the land, those you allow to remain will become barbs in your eyes and thorns in your sides. They will give you trouble in the land where you will live.

Read Numbers 33:55 Using Other Translations

But if ye will not drive out the inhabitants of the land from before you; then it shall come to pass, that those which ye let remain of them shall be pricks in your eyes, and thorns in your sides, and shall vex you in the land wherein ye dwell.
But if you do not drive out the inhabitants of the land from before you, then those of them whom you let remain shall be as barbs in your eyes and thorns in your sides, and they shall trouble you in the land where you dwell.
But if you fail to drive out the people who live in the land, those who remain will be like splinters in your eyes and thorns in your sides. They will harass you in the land where you live.