Why in the world would they get so excited about it? Because they're free. When you obey, you're free. When you disobey, you're in bondage. All around us we see individuals in bondage because they're in sin, and all they talk about is freedom. They're not free.The obedient guy dancing is free.
I should warn you, when you're really free, the people who are not so free will have trouble with your being free. Look at David's wife in verse 16. Her husband is down there dancing and singing and shouting, and there's Michal up in the second floor flat, frowning down on her husband. "Then it happened as the ark of the LORD came into the city of David that Michal the daughter of Saul looked out of the window and saw King David leaping and dancing before the LORD; and she despised him in her heart" (2 Samuel 6:16).
Two things strike me here. Both have to do with the issue of focus; one is horizontal, and one is vertical. David's eyes were on the Lord; Michal's eyes were on other people.
First, the better you know where you stand with the Lord, the freer you can be. When you do the homework, you find out where you stand with your Lord, and when you follow His plan, then you are free. I mean really free! Many won't understand, of course. To some, you will be seen as independent—a maverick. You'll be misunderstood. Like David with his own wife. But you won't care that much about public opinion either. You'll care mainly about the Lord's opinion. There is no freedom like the kind He provides. In a word, it's grace.
Second, the freer you are before the Lord, the more confident you will become. When you know where you stand, that is real security.
Knowing where you stand before the Lord leads to true freedom. Being free before the Lord, you will become confident, and that is genuine security.