He will not let your foot slip – he who watches over you will not slumber; (NIV)
He will not allow your foot to slip or to be moved; He Who keeps you will not slumber. [I Sam. 2:9; Ps. 127:1; Prov. 3:23, 26; Isa. 27:3.] (AMP)
He will not suffer thy foot to be moved: he that keepeth thee will not slumber. (KJV)