How precious also are thy thoughts unto me, O God! - On the word “thoughts,” see the notes at Psalms 139:2. Compare Psalms 139:23. The remark is made here doubtless in view of the numberless “thoughts” involved in planning and forming a frame so wondrous, and in the care necessary to bring it to perfection; to develop it; to provide for it; to guard and defend it. How many “thoughts” of a parent are employed in behalf of his children, in providing for them; teaching them; counseling them; anticipating their needs. How manymore thoughts are needful on the part of God in reference to each one of us: for there are numberless things necessary for us which cannot occupy the mind of a parent, since he cannot accomplish these things for us; they do not lie within his province, or in his power.
How great is the sum of them - literally, “How strong are the heads of them.” That is, The heading of them, or the summing of them up, would be a task beyond the power of man. And who “could” estimate the number of the “thoughts” necessarily bestowed on himself by his Maker in all the care exercised over him; all the arrangements for his development and growth; all that is done to defend him from danger; all that is indispensable in providing for his needs; all that was necessary to secure the salvation of his soul! See the notes at Psalms 40:5.