Bible Verses About Strife: Warn against

Nevertheless, brothers, I call on you in the name of our Lord Yeshua the Messiah to agree, all of you, in what you say, and not to let yourselves remain split into factions but be restored to having a common mind and a common purpose.

Keep reminding people of this, and charge them solemnly before the Lord not to engage in word-battles. They accomplish nothing useful and are a catastrophe for the hearers!