Galatians 6:2-5

Carry one another’s burdens and in this way you will fulfill the requirements of the law of Christ [that is, the law of Christian love]. [John 13:34] For if anyone thinks he is something [special] when [in fact] he is nothing [special except in his own eyes], he deceives himself. But each one must carefully scrutinize his own work [examining his actions, attitudes, and behavior], and then he can have the personal satisfaction and inner joy of doing something commendable without comparing himself to another. For every person will have to bear [with patience] his own burden [of faults and shortcomings for which he alone is responsible].