2 Timothy 2:23-24

23But have nothing to do with foolish and ignorant speculations [useless disputes over unedifying, stupid controversies], since you know that they produce strife and give birth to quarrels.

24The servant of the Lord must not participate in quarrels, but must be kind to everyone [even-tempered, preserving peace, and he must be], skilled in teaching, patient and tolerant when wronged.