(John 7:28-29 ESV)
In Luke 12:51 Christ says He came not to bring peace to earth but division.He also says in John 14:27 that He leaves his people with peace, to have untroubled hearts.Later in John 16:33, He says that when we are scattered, His words will give our hearts peace.So the division he brings is not emotional, but a separation of who is His and who is not.Matt 25:32 says:
Before him will be gathered all the nations, and he will separate people one from another as a shepherd separates the sheep from the goats. And he will place the sheep on his right, but the goats on the left. Then the King will say to those on his right, ‘Come, you who are blessed by my Father, inherit the kingdom prepared for you from the foundation of the world.