'Slow' in the Bible

The Lord is slow to wrath and great in mercy, overlooking wrongdoing and evil, and will not let wrongdoers go free; sending punishment on children for the sins of their fathers, to the third and fourth generation.

But if you are slow in driving out the people of the land, then those of them who are still there will be like pin-points in your eyes and like thorns in your sides, troubling you in the land where you are living.