Psalm 126 A Dream.
The future of the church does seem like a dream-something that could not possibly be found in reality (v. 1). However, this is what is promised. As one moves through these songs of ascent the hope and joy increases (vv. 2-4). This hope is based on sins forgiven (Cf. Ps. 85:1-2; Is. 35:10; 51:11) It is a covenantal hope (Cf. Is. 61:7-8; Jer. 31). The LORD will bring His people to a place of peace and prosperity (Cf. Jer. 29:14). Likely in an initial reference to the return from Babylonian captivity, it is a situation which every saint has found themselves in at one point or other-living in the midst of a host of those foreign to the faith.
“The LORD has done great things for them. The LORD has done great things for us.” We share with them the anguish of captivity, but also the joy for what great things the LORD has done for us. It is a future promised to the church (Joel 3:1ff.). “Those who sow in tears shall reap in joy.” (v. 5) The LORD rewards the planting work of His people, even when at the time the saints were surrounded by foreigners, and from a human standpoint the future harvest may be in doubt (Cf. Gal. 6:9). Ultimately it is the saints and the church itself which is the planting of the LORD, “that He may be glorified.” (Is. 61:3)