John Calvin Commentary Psalms 69:3

"I am weary with my crying; my throat is dried: Mine eyes fail while I wait for my God." — Psalms 69:3 (ASV)

I am weary of crying: David, in seeking and calling upon God when his affairs were in such a confused and desperate condition, displayed rare and wonderful patience. He complains of having continued crying until he was exhausted and became hoarse, and all to no avail.

By the word weary, he does not mean that he gave up on prayer, as if he had abandoned all love for and delight in that exercise when he found it ineffective as a means of deliverance. He rather describes his untiring perseverance; and the same idea is expressed by his hoarse throat and failing eyes. He certainly did not cry out before men from mere affectation, nor was this hoarseness contracted in a single day.

Thus, we perceive that although his bodily senses failed him, the vigor of his faith was by no means extinguished. When we reflect that David has spoken, as it were, out of the mouth of Christ, and, as it were, out of the mouth of all true saints who are the members of Christ, we should not think that anything strange is happening to us if at any time we are so overwhelmed by death that we are unable to discern the slightest hope of life.

Indeed, rather, let us learn in good time, while God spares us, to meditate on this truth and to receive the help it is suited to provide in calamity. In this way, even in the most profound depths of adversity, faith may hold us up and, what is more, elevate us to God. For, as Paul testifies (Romans 8:39), no height nor depth which can separate us from the infinite love of Him who swallows up all depths, yes, even hell itself.