2 Corinthians 10:11-13 Revised Standard Version (RSV)
11 Let such people understand that what we say by letter when absent, we do when present. 12 Not that we venture to class or compare ourselves with some of those who commend themselves. But when they measure themselves by one another, and compare themselves with one another, they are without understanding.
13 But we will not boast beyond limit, but will keep to the limits God has apportioned us, to reach even to you.