Why do Christians always argue with each other?

Here's the answer:

There is always arguing among people because of sin.

God hates when we argue with others. It is not right to be mad at others. We need to show respect to every single person. Part of showing respect is not arguing among ourselves.

Arguing among believers is wrong. It is okay to have a disagreement, but it’s not okay to argue. Remember, Christians will have different viewpoints on certain subjects; this doesn’t mean they are arguing. There is a polite way to have a disagreement without arguing. In everything we do, we need to keep peace with one another and avoid arguing.

Bible Truth

"If you say or do things that harm one another, watch out! You could end up destroying one another" (Galatians 5:15).

"But suppose your hearts are jealous and bitter. Suppose you are concerned only about getting ahead. Then don’t brag about it. And don’t say no to the truth" (James 3:14).

"Why do you fight and argue among yourselves? Isn’t it because of your sinful desires? They fight within you" (James 4:1).