John Trapp on Psalms 42:7

Verſ. 7. Deep calleth unto deep] Vorago voraginom advocat, i.e. one calamity inviteth another: Aliud ex also malum, they come thick and three-fold,Gurges gurgitem excipit. Beza. the Clouds return after the rain, Eccleſ. 12.2. as one ſhower is unburthened, another is brewed. One affliction followeth and occaſioneth another, without ceaſing, or intermiſſion; ſo that they are grown as it were to an infiniteneſs, as Pſalm 40.12.

At the noyſe of thy water-ſpouts] i.e. Thy Clouds pouring down amain, in a ſtorm at Sea eſpecially, by a Cataclyſm of waters falling at once out of the Clouds, ſometimes to the overwhelming and breaking of a ſhip. This, Mariners call a ſpout, Pſal. 18.4. The flouds of Belial made me afraid.

All thy waves and thy billows are gone over me] Fluctou fluctum trudit; yet not, without the Lord: the enemies and the evils that befell him are called Gods waves or breakings. Propter peccata noltra à te immiffa. Kimchi.