It ought to be!
David, wearing a linen ephod, danced before the LORD with all his might, while he and the entire house of Israel brought up the ark of the LORD with shouts and the sound of trumpets.As the ark of the LORD was entering the City of David, Michal daughter of Saul watched from a window. And when she saw King David leaping and dancing before the LORD, she despised him in her heart.
They brought the ark of the LORD and set it in its place inside the tent that David had pitched for it, and David sacrificed burnt offerings and fellowship offerings before the LORD. 18 After he had finished sacrificing the burnt offerings and fellowship offerings, he blessed the people in the name of the LORD Almighty. Then he gave a loaf of bread, a cake of dates and a cake of raisins to each person in the whole crowd of Israelites, both men and women. And all the people went to their homes.
When David returned home to bless his household, Michal daughter of Saul came out to meet him and said, "How the king of Israel has distinguished himself today, disrobing in the sight of the slave girls of his servants as any vulgar fellow would!"
David said to Michal, "It was before the LORD, who chose me rather than your father or anyone from his house when he appointed me ruler over the LORD's people Israel—I will celebrate before the LORD. I will become even more undignified than this, and I will be humiliated in my own eyes. But by these slave girls you spoke of, I will be held in honor."
2 Samuel 6:14-22
By your logic, slavery should be encouraged.
FYI, with the arrival of Christ (and His self-sacrifice for our salvation,) there is a NEW covenant.
NEW. Not OLD.
Things changed at the death of Christ. The veil of the Temple was ripped, etc., etc.
Just thought I'd try to help you out...