our: i.e. Moses, and those of whom he writes.
threescore years and ten. This refers to the length of life in the wilderness in the time of Moses, which must have been shortened specially, so that the adults died off within the forty years. The "days" were, and could thus be, actually "numbered", as stated in Psalms 90:12. and in. way they could not have been since then. See notes on p. 809.
strength. Hebrew, plural, meaning great strength (i.e. vigour, or strength for activity). Hebrew. gabar. Compare App-14.
their strength. their violence (i.e. strength for aggression). Hebrew. rahab. See notes on p. 809.
and we fly away. Figure of speech Euphemy, for dying. App-6.