The Lord reigns, let the peoples tremble; He is enthroned above the cherubim, let the earth shake.
Trembling is a right response to God!
Sometimes we get very used to the idea that God is there for us, that He is involved in our lives, and we begin to take Him for granted. We can even begin to ignore Him and think nothing of it.
If God was distant, not involved in this world, then we could safely ignore Him. But when the Supreme Being, the maker of all that is, the one who holds all the power that exists, the God of purity and purpose — when HE gets personally involved in your life, you dare not ignore Him or get used to Him.
Just as standing beside a massive, thundering waterfall can make you gulp and respect the power of water, so being in the presence of God makes us gulp and fear and respect Him in a new way. We are secure in His love, but we recognize that He is not tame. As C.S. Lewis wrote of Aslan the lion, "He isn't safe. But he's good. He's the King."
God is not building His life around us; rather, we must build our lives around Him.
Have you gotten used to God's presence in your life? Take some time right now to remember who is on the throne of this universe and re-orient your life around Him!