Who passing through the valley of Baca make it a well; the rain also filleth the pools. Passing through the valley of Baca make it a well - Instead of בכא bacha, a mulberry-tree, seven MSS. have בכה becheh, mourning. I believe Baca to be the same here as Bochim, Judges 2:1-6, called The Valley of Weeping. Though they pass through this barren and desert place, they would not fear evil, knowing that thou wouldst supply all their wants; and even in the sandy desert cause them to find pools of water, in consequence of which they shall advance with renewed strength, and shall meet with the God of Israel in Zion.
The rain also filleth the pools - The Hebrew may be translated differently, and has been differently understood by all the Versions. גם ברכות יעטה מורה gam berachoth yaateh moreh; "Yea, the instructor is covered or clothed with blessings." While the followers of God are passing through the wilderness of this world, God opens for them fountains in the wilderness, and springs in the dry places. They drink of the well-spring of salvation; they are not destitute of their pastors. God takes care to give his followers teachers after his own heart, that shall feed them with knowledge; and while they are watering the people they are watered themselves; for God loads them with his benefits, and the people cover them with their blessings.