Now my days are swifter than a post: they flee away, they see no good. Swifter than a post - מני רץ minni rats, than a runner. The light-footed messenger or courier who carries messages from place to place. They flee away - The Chaldee says, My days are swifter than the shadow of a flying bird. So swiftly do they flee away that I cannot discern them; and when past they cannot be recalled. There is a sentiment like this in Virgil, Geor. lib. iii., ver. 284: -
Sed Fugit interea, Cubit Irreparabile tempus! -
"But in the meanwhile time flies! irreparable time flies away!"