Psalms 91:12

They shall bear thee up in their hands
Which denotes the strength and power of angels to carry the saints in their hands; their tender care of them, such as a parent or nurse have of children; the helpless condition of the people of God, who are like infants, and need to be dealt with after this manner; the condescension of angels to take such an office on them, in submission to the will of God; the constant view they have of the saints, being always in their hands, and so in sight: thus they bear them, up in life, and at death carry their souls to Abraham's bosom:

lest thou dash thy foot against a stone;
lest they fall into sin, or into any calamity and distress; lest the least hurt or mischief befall them, or the least injury be done them; see ( Proverbs 3:23 ) . The Targum interprets it of the evil concupiscence, or corruption of nature, which is like a stone; see ( Ezekiel 36:26 ) .