Matthew Poole and continuators on Psalms 103:14

14 For he knoweth our frame : he remembreth that we are dust.

Either 1. the corruption of our natures; which God is pleased sometimes to make an argument to pity and spare men; as Gen. 8. 21. So the sence is, He considereth that great and constant propension to evil, which is naturally in all mankind, and that therefore, if he should deal severely with us, he should immediately destroy us all. So this clause contains one motive of Gods pity, and the next another. Or rather 2. the weakness and mortality of our natures and the frailty and misery of our condition, as it seems to be explained in the following clause, that we are but dust. So the sence is, He considereth that if he should let loose his hand upon us and pour forth all his wrath, we should be suddenly and irrecoverably destroyed, and therefore he spareth us.

Marginal references: Psal. 78. 39.