42:7 Deep calleth unto deep. This remarkable phrase seems to refer to a thunderous oceanic tornado (“waterspout”) extending all the way from the ocean “deep” to the cloudy “deep” of the heavens; generating mighty billows on the deep sea.

42:8 Yet the LORD. Even in such tumultuous times, the Lord is still with us day and night, though our enemies deride us for trusting in a God who seems (for the present) not to answer.

Psalm 43 (title). Psalm 43 is the only psalm in Book II of the Psalms (except for Psalm 71, q.v.) which has no title. The reason is that it is, in effect, a continuation of Psalm 42, both concluding with the same question. Yet it is clearly a different psalm, evidently written by the same unnamed author at a later time.