John Trapp on Psalms 90:4

Verſ. 4. For a thouſand years in thy ſight, &c.] q. d. Live men a longer or ſhorter ſpace, Serius aut citius, thou endeſt their days; and in compariſon of thine Eternity, Punctum eſt quod vivimus & puncto minus, it is a ſmall ſpace of time that the longeſt liver hath upon earth, 2 Pet. 3.8. Pſal. 39.5. Non multum ſane abeſt à nihilo. Some would hence inferre, that the Day of Judgement ſhall laſt a thouſand years; ſides ſit penes authores.

When it is paſſed] We judge better of the ſhortneſs of time, when it is paſt.

And as a watch in the night] Which is but three hours ſpace; for Souldiers divide the Night into four Watches, and our life is full of the darkneſs of errour and terrour.