Colossians 3:15a

"And let the peace of God rule in your hearts, to the which also ye are called in one body"

So much in just this segment of a verse. "Let the Peace of God" Who wouldn't "Let Peace" or "Let God"? Yet we're told to do this rather forcefully. Apparently many don't "Let". Think Luke 10:41 -- "Martha, Martha thou art careful and troubled about many things."

But then it is not "Let the peace of God into your hearts." It's "Let the peace of God RULE in your hearts." Think of the times when it is difficult to let peace rule your decision making. Let peace run the household. When you make a decision, ask whether the decision coincides with "the peace of God." This is a high standard. It's not about relaxing (although that's in there too). It's about taking actions and living a life where the motivating force is "the peace of God."

"To the which also ye are called in one body" -- the reason we need the peace of God to rule in our hearts? Because we have to deal with others. Were we to sequester ourselves, and commune only with God, things would be easier. Less strife. Less deviation from the peace of God. Had Jesus arrived at Martha's house without an entourage, had Mary, her sister not been there, Martha would have had less troubling her. But we're in the world, and we must work together because we were called to do exactly that. And if we don't let "the peace of God rule in our hearts" what do we have? What's the alternative?