Psalms 31:1

Faith and prayer must go together. He that believes, let his pray - I believe, therefore I have spoken: and he that prays, let him believe, for the prayer of faith is the prevailing prayer. We have both here. I. David, in distress, is very earnest with God in prayer for succour and relief. This eases a burdened spirit, fetches in promised mercies, and wonderfully supports and comforts the soul in the expectation of them. He prays, 1. That God would deliver him (Psa 31:1), that his life might be preserved from the malice of his enemies, and that an end might be put to their persecutions of him, that God, not only in his mercy, but in righteousness, would deliver him, as a righteous Judge betwixt him and his unrighteous persecutors, that he would bow down his ear to his petitions, to his appeals, and deliver him, Psa 31:2. It is condescension in God to take cognizance of the case of the greatest and best of men; he humbles himself to do it. The psalmist prays also that he would deliver him speedily, lest, if the deliverance were long deferred, his faith should fail. 2. That if he did not immediately deliver him out of his troubles, yet he would protect and shelter him in his troubles; "Be thou my strong rock, immovable, impregnable, as a fastness framed by nature, and my house of defence, a fortress framed by art, and all to save me.

— Matthew Henry's Concise Commentary (public domain)