Charles H. Spurgeon on Psalms 22:2

"O my God, I cry in the daytime, but thou hearest not." For our prayers to appear to be unheard is no new trial, Jesus felt it before us, and it is observable that he still held fast his believing hold on God, and cried still, "My God." On the other hand his faith did not render him less importunate, for amid the hurry and horror of that dismal day he ceased not his cry, even as in Gethsemane he had agonized all through the gloomy night. Our Lord continued to pray even though no comfortable answer came, and in this he set us an example of obedience to his own words, "men ought always to pray, and not to faint." No daylight is too glaring, and no midnight too dark to pray in; and no delay or apparent denial, however grievous, should tempt us to forbear from importunate pleading.