2 Timothy 2:24

The 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. 

Quarrels matter to God because they interfere with the ability to hear from God. Strife doesn’t bring peace but clouds the mind with fears and anger. Patience, kindness, and choosing not to let our peace be disturbed by the enemy qualify a person to serve the Lord. Our skill in teaching relies on our Bible knowledge and willingness to be used by God whenever we hear the call.