Moses
Psalm 69:2BSB·traditional attribution

I have sunk into the miry depths, where there is no footing; I have drifted into deep waters, where the flood engulfs me.

John Calvin Reformed @genevareformer

PSALM 69 There is a close resemblance between this psalm and the twenty-second. In the opening verses, David complains of the barbarous cruelty of his enemies, and of the grievous wrongs which they had inflicted upon him. The particular enemies of whom he speaks are uncertain; some referring the occasion of the composition of the psalm to his persecution by Saul, and others to the rebellion of Absalom.

Commenting on Psalm 69:1-36

C.H. Spurgeon Reformed Baptist @princeofpreachers

I sink in deep mire. In water one might swim, but in mud and mire all struggling is hopeless; the mire sucks down its victim. Where there is no standing. Everything gave way under the Sufferer; he could not get foothold for support—this is a worse fate than drowning. Here our Lord pictures the close, clinging nature of his heart's woes.

Matthew Henry Presbyterian @wholebiblehenry

In these verses David complains of his troubles, intermixing with those complaints some requests for relief. I. His complaints are very sad, and he pours them out before the Lord, as one that hoped thus to ease himself of a burden that lay very heaven upon him. 1.

Commenting on Psalm 69:1-12