Galatians 6:4

4τὸButδὲthe workἔργονof himselfἑαυτοῦtestδοκιμαζέτωeachἕκαστος,andκαὶthenτότεas toεἰςhimselfἑαυτὸνaloneμόνονtheτὸground of boastingκαύχημαhe will haveἕξειandκαὶnotοὐκas toεἰςτὸνanotherἕτερον,

But let each test his own work, and then he will have boasting in regard to himself alone, and not in regard to another.