Psalms 8:4

“What is man, that thou art mindful of him? etc.] That is, the psalmist, while he was considering the greatness and glory of the celestial bodies, thought this within himself, and so expressed it; which is to be understood, not of man in general, nor of Adam in a state of innocence; he could not be called “Enosh”, the word here used, which signifies a frail, weak, sickly mortal man; nor could he with any propriety be said to be the son of man, as in the following clause: nor of fallen man, or of Adam’s posterity, descending from him by ordinary generation; for all things are not put in subjection to them, as is hereafter said of man: but this is to be understood of the man Christ Jesus, as it…”

“man--literally, "frail man," an allusion to his essential infirmity. son of man--only varies the form of speech. visitest--in favor (Psa 65:10). This favor is now more fully illustrated.”

“What is man - What claim has one so weak, and frail, and short-lived, to be remembered by time? What is there in man that entitles him to so much notice? Why has God conferred on him so signal honor? Why has he placed him over the works of his hands? Why has he made so many arrangements for his comfort? Why has he done so much to save him? He is so insignificant his life is so much like a vapor, he so soon disappears, he is so sinful and polluted, that the question may well be asked, why such honor has been conferred on him, and why such a dominion over the world has been given him. See these thoughts more fully expanded in the notes at Hebrews 2:6. That thou art mindful of him - That thou…”

“What is man - How mean and inconsiderable a thing is man, if compared with thy glorious majesty. Man - Heb. infirm, or miserable man. By which it is apparent that he speaks of man, not according to the state of his creation, but as fallen into a state of sin and misery, and mortality. Mindful - Carest for him, and conferest such high favours upon him. The son - Heb. the son of Adam, that great apostate from God, the sinful son of a sinful father, his son by likeness of disposition and manners, no less than by procreation. All which tends to magnify the following mercy. Visitest - Not in anger, as that word is sometimes used, but with thy grace and mercy. Psalms 8:5”

“8:4 human beings (literally son of Adam): The Hebrew idiom son of man (or son of Adam) means a human being. Through the influence of Dan 7:13-14, it became a title with divine overtones in the New Testament. See Heb 2:6-8, where this passage is quoted.”

“What: Psa 144:3; Ch2 6:18; Job 7:17, Job 25:6; Isa 40:17; Heb 2:6-9 son: Psa 4:2, Psa 80:17, Psa 146:3; Isa 51:12; Eze 8:15; Mat 8:20 visitest: Psa 106:4; Gen 21:1; Exo 4:31; Luk 1:68, Luk 19:44; Pe1 2:12 Psalms 8:5”