Jeremiah
Lamentations 3:8ESV·traditional attribution

though I call and cry for help, he shuts out my prayer;

John Calvin Reformed @genevareformer

The Prophet describes here the extremity of all evils, that it availed him nothing to cry and to pray. And yet we know that we are called to do this in all our miseries. “The strongest tower is the name of the Lord, to it will the righteous flee and shall be safe.” (Proverbs 18:10.) Again, “Whosoever shall call on the name of the Lord...

Matthew Henry Presbyterian @wholebiblehenry

The title of the 102nd Psalm might very fitly be prefixed to this chapter - The prayer of the afflicted, when he is overwhelmed, and pours out his complaint before the Lord; for it is very feelingly and fluently that the complaint is here poured out. Let us observe the particulars of it. The prophet complains, 1. That God is angry.

Commenting on Lamentations 3:1-20

John Gill Reformed Baptist @doctorgill

Also when I cry and shout,.... Cry, because of the distress of the enemy within; "shout", or cry aloud for help from others without; as persons in a prison do, to make them hear and pity their case: thus the prophet in his affliction cried aloud to God; was fervent, earnest, and importunate in prayer; and yet not heard: he shutteth out my prayer; shuts...