Edahn, Psalm 46:5 "Be still and know that I am God" is not a meditation instruction. It is God ordering the heathen nations to stop their warring and be at peace and recognize Him as God. If I were God, I would say it like this (good thing I am not God) "You idiots, stop your warring ways and have some peace in your minds and know that I am God before I wipe you from the face of the earth." This Being still and knowing that He is God is not spoken to those who know He is God such as believing Jews and Christians because very simply they know He is God. It is spoken to non-believers.
People who use it as a meditation instruction are taking the verse out of context.
Well, I looked it up, and I'm not sure I agree with your interpretation.
Psalms 46:1 To the choirmaster. A Psalm of the Sons of Korah. According to Alamoth. A Song. God is our refuge and strength, a very present help in trouble.
Psalms 46:2 Therefore we will not fear though the earth should change, though the mountains shake in the heart of the sea;
Psalms 46:3 though its waters roar and foam, though the mountains tremble with its tumult. [Selah]
Psalms 46:4 There is a river whose streams make glad the city of God, the holy habitation of the Most High.
Psalms 46:5 God is in the midst of her, she shall not be moved; God will help her right early.
Psalms 46:6 The nations rage, the kingdoms totter; he utters his voice, the earth melts.
Psalms 46:7 The LORD of hosts is with us; the God of Jacob is our refuge. [Selah]
Psalms 46:8 Come, behold the works of the LORD, how he has wrought desolations in the earth.
Psalms 46:9 He makes wars cease to the end of the earth; he breaks the bow, and shatters the spear, he burns the chariots with fire!
Psalms 46:10 "Be still, and know that I am God. I am exalted among the nations, I am exalted in the earth!"
Psalms 46:11 The LORD of hosts is with us; the God of Jacob is our refuge. [Selah]
It doesn't sound like an ORDER to the heathens at all. In fact, I don't even think the sentences are necessarily related. Maybe the original language could clear it up, though. If you have the Hebrew, I could read it and get back to you. The Aramaic I'm not so good at, but might be able to get by. (Yay for Yeshiva!)