For we dare not class ourselves or compare ourselves with those who commend themselves. But they, measuring themselves by themselves, and comparing themselves among themselves, are not wise.
2 Corinthians 10:12
Surrounding context
10:11 Let such a person consider this, that what we are in word by letters when we are absent, such we will also be in deed when we are present.
10:12 For we dare not class ourselves or compare ourselves with those who commend themselves. But they, measuring themselves by themselves, and comparing themselves among themselves, are not wise.
10:13 We, however, will not boast beyond measure, but within the limits of the sphere which God appointed us--a sphere which especially includes you.