“The Lord’s bond-servant must not be quarrelsome but be kind to all, able to teach, patient when wronged, with gentleness correcting those who are in opposition….” (Second Timothy 2:24ff.)
Just because we are not to be quarrelsome doesn’t mean we can’t have a good old-fashioned argument.
We just can’t have a “good old-fashioned knock-down fight.”
No one must be hurt in the process.
We can have differences of opinions, and conflicts of convictions. Since the church is composed of partially developed, not-yet-finished specimens of God’s grace–people like you and me–we’re going to have differences. That is a given, a fact of life.
If my wife and I, we who love each other most of the time and have lived together as husband and wife for going-on 52 years, if we have differences of opinions and occasionally outright arguments, it figures that rank strangers would.