The days of our years; either,
1. Of the Israelites in the desert, who being twenty years old, and some, thirty, some forty, some fifty years old, when they came out of Egypt, and dying in the wilderness, as all of that age did, Numbers 14:29, a great number of them doubtless died in their seventieth or eightieth year, as is here implied. Or rather,
2. Of the generality of mankind, and the Israelites no less than others, in that and all following ages, some few persons excepted, amongst whom were Moses, and Caleb, and Joshua, who lived a hundred and twenty years; which is therefore noted of them as a thing singular and extraordinary. This sense suits best with the following words, and with the scope of Moses; which was to represent the vain and transitory condition of men in this life, and how much mankind was now sunk below their ancestors, who commonly lived many hundreds of years; and that the Israelites, though God's peculiar people, and endowed with many privileges, yet in this were no better than other men; all which may be considered, either as an argument to move God to pity and spare them, or as a motive to awaken and quicken the Israelites to serious preparations for death, by comparing this with Psalms 90:12. Threescore years and ten; Which time the ancient heathen writers also fixed as the usual space of men's lives. By reason of strength, i.e. by the strength of their natural constitution; which is the true and common cause of longer life. Their strength; their strongest and most vigorous old age. Or, their excellency, or pride; that old age which is their glory, and in which men do commonly glory. Labour and sorrow; filled with troubles and griefs from the infirmities of age, the approach of death, and the contingencies of human life. It, either our age or our strength, is soon cut off; it doth not now decline by many degrees and slow steps, as it doth in our young and flourishing age, but decayeth apace, and suddenly flieth away. We fly away; we do not now go to death, as we do from our very birth, nor run, but fly swiftly away like a bird, as this word signifies.