Charles Ellicott Commentary Psalms 126:5

"They that sow in tears shall reap in joy." — Psalms 126:5 (ASV)

Joy. — Rather, singing, as in Psalms 126:2. The harvest-home songs are contrasted with the anxiety of the seed-time. Probably the poet found the proverbial saying already current, but he has touched it with the consecrating hand until it has become only less precious than the saying of Divine lips, “Blessed are they that mourn, for they shall be comforted.”