I know that everything God does endures forever; nothing can be added to it or taken from it. God does it so that they should fear Him.
KJV
I know that, whatsoever God doeth, it shall be for ever: nothing can be put to it, nor any thing taken from it: and God doeth [it], that [men] should fear before him.
ASV
I know that, whatsoever God doeth, it shall be for ever: nothing can be put to it, nor anything taken from it; and God hath done it, that men should fear before him.