“that they all may be one; just as You, Father, are in Me and I in You, that they also may be one in Us, so that the world may believe [without any doubt] that You sent Me.”
JOHN 17:21 AMP
We were taught to love one another because it’s the Christian thing to do. To cover, forgive, and protect each other sounds so nice and in fact it is because doing so causes the world to believe. If we're not, then in theory, we're causing people not to believe in Jesus. Loving your brothers and sisters is a part of a greater picture; it's a form of evangelism to win the world. It's a tool God used with His son to win the world. Gather those that need a healing and a touch from God. Jesus cooperated, we need to cooperate too.