Psalms 91:7

“A thousand shall fall at thy side, etc.] The left side, as the Targum; so the Arabic version, and Jarchi and Kimchi; which sense the opposition and distinction in the next clause direct unto: this is not to be understood of falling in battle, as some interpret it, but by the pestilence before spoken of: and ten thousand at thy right hand; which shows both the great devastation made by the plague where it comes, and the special care and providence of God in preserving his people from it; of which David had an experience, when vast numbers of his people were destroyed by it on the right and left: but it shall not come nigh thee; it may come near the place where good men are, or else it could…”

“A thousand shall fall at thy side - Though a thousand should fall at thy side, or close to thee. This alludes to the manner in which the pestilence often moves among people. And ten thousand at thy right hand - Compare Psalms 3:6. The word “myriad” would better represent the exact idea in the original, as the Hebrew word is different from that which is translated “a thousand.” It is put here for any large number. No matter how many fall around thee, on the right hand and the left, you will have nothing to fear. But it shall not come nigh thee - You will be safe. You may feel assured of the divine protection. Your mind may be calm through a sense of such guardianship, and your very calmness…”

“Psa 32:6; Gen 7:23; Exo 12:12, Exo 12:13; Num 14:37, Num 14:38; Jos 14:10 Psalms 91:8”