And the servant of the Lord must not strive; but be gentle unto all men, apt to teach, patient,
Not strive. "The servant of the Lord" must imitate his master in not striving contentiously, though uncompromisingly contending for the faith (Jude 1:3; Matthew 12:19).
Gentle unto all men ... patient, х anexikakon (G420)] - 'patient of wrongs,' in respect to adversaries: gentle in words and demeanour, so as to occasion no evils; patient, so as to endure evils.
Apt (ready and skilled) to teach - patiently and assiduously, instead of noisily contending.