thorn in the flesh

With reference to the Bible 2nd Epistle of Paul to the Corinthians, chapter 12, verse 7. 2 Corinthians 12.7

• "Whereas the growth of new middle and upper classes remains a thorn in the flesh to the Communist Party, the military element is inclined to favor this development, in the belief that those who have something at stake are more likely to fight to defend the system in the event of another conflict."
• "Mr. Deputy Speaker, Sir, the post of the Executive Director of the Kenya Roads Board has been a thorn in the flesh of the Minister."
• "Even individual castles could be a thorn in the flesh of a powerful kingdom."

• thorn in one's side