Lamentations 3:8

Also when I cry and shout When, under a conviction that, in my present distressed condition, I cannot deliver myself, and that no creature can deliver me, I make application to God in prayer for deliverance, and am serious, fervent, and importunate in my addresses to him; he shutteth out my prayer Refuses to hearken to it, or give me any ease or relief; Hebrew, שׂתם, the same as סתם, he hath obstructed my prayer; “hath barred my prayer from approaching him.” Blaney. Thus sometimes God seems to be angry even against the prayers of his people, Psalms 80:5. And their case is deplorable indeed when they are denied, not only the benefit of an answer, but the comfort of acceptance.