Numbers 33:55

“Therefore I also said, ‘I will not drive them out before you; but they will become as thorns in your sides, and their gods will become a snare to you.’”

“And there will be no more for the house of Israel a prickling brier or a painful thorn from any round about them who scorned them; then they will know that I am Lord Yahweh.”

Because of the surpassing greatness of the revelations, for this reason, to keep me from exalting myself, there was given me a thorn in the flesh, a messenger of Satan to torment me—to keep me from exalting myself!