Who passing through the valley of Baca make it a wall; rather, through the valley of weeping ( τὴν κοιλάδα τοῦ κλαυθμῶνος, LXX.). So Hupfeld. Hengstenberg, Kay, and the Revised Version; compare Hosea's "valley of Achor," i.
e. "of Grief." When the righteous pass through a time of suffering or calamity, they turn it into a time of refreshment. The rain also filleth the pools; rather, the early rain (Joel 2:23) covereth it with blessings.
The rain of God's grace mantles all the valley with a luxuriant vegetation; in other words, the blessing of God rests on those who act as above described, and causes them ever to increase in righteousness and true holiness.