After the ten tribes separated from Judah and Benjamin through a bad decision of the new king, Rehoboam, he and the armies of Judah and Benjamin sought to reunite the tribes through warfare, but God stopped it,
“But the word of the LORD came to Shemaiah the man of God, saying, ‘Speak to Rehoboam the son of Solomon, king of Judah, and to all Israel in Judah and Benjamin, saying, “Thus says the LORD: ‘You shall not go up or fight against your brethren! Let every man return to his house, for this thing is from Me.’”” Therefore they obeyed the words of the LORD, and turned back from attacking Jeroboam” (2 Chronicles 11:2-4).
To let division go, goes against our desires, but sometimes it has to happen.
Whenever you find yourself in the midst of division, seek God’s will and see what He wants you to do.