Remember God, Have Joy
If the young man wishes truly to “rejoice,” he must continually “remember” God. “Thy Creator” implies the reason why we should “remember.” Not to remember Him to whom we owe our first being and continued preservation would be monstrous and unnatural.
The general idea is clear: the common Old Testament imagery of light and darkness represents the fading capacity for joy. Similarly, the returning clouds refer probably to a continual succession of sorrows
The human spirit is the principle of intelligent, responsible life. Its withdrawal constitutes the end of earthly life and brings on the dissolution of the body (cf. Pss 22:15; 104:29). Its return to God is not developed. It is set, however, in contrast to ‘returning to dust’, the dissolution of the body, and so cannot refer to that, because it is set in contrast to it. It echoes the contrast of ‘upward’ and ‘downward’ in 3:20, and the ‘earth’ and ‘heaven’ of 5:2. The term hints, therefore, at continued existence; but we have to wait until the light of the New Testament before details are given (cf. 2 Tim. 1:10).
effects of old age. One line of interpretation sees a physiological allusion in each of these lines:
verse 2: sight dimmed, depressed
verse 3: trembling hands, stooping posture,
losing teeth, cataracts
verse 4: loss of hearing, awakening early
verse 5: increased fears, gray/white hair,
slow movements, decreased sexual drive
verse 6: weakened spinal cord, deteriorated
mental powers; loss of bladder control;
heart failure
verse 7: death