Charles Ellicott Commentary Psalms 124:4

"Then the waters had overwhelmed us, The stream had gone over our soul;" — Psalms 124:4 (ASV)

Waters. —The sudden transition in the imagery from the earthquake to the flood is characteristic of Hebrew poetry. (For the flood, see Psalms 18:4; Psalms 18:16; Psalms 69:14; Psalms 144:7.)

Stream. —The torrent swollen with the winter rain. (Compare to Isaiah 8:7-8.)