He afterwards adds, Cry to me, and I will answer thee, and I will announce to thee things magnificent and recondite, which thou hast not known It was not so much for the sake of the Prophet as of others that this was said. For the Prophet, no doubt, had earnestly prayed, and his prison must have inflamed his ardor, so as to intercede constantly with God. God then does not here reprove his torpor or his sloth by saying, Cry to me; but as I have said, the word is so directed to the Prophet, that God excites all the godly to pray. There is indeed here an implied reproof, as though he had said that it was their fault that God did not cheer their minds with a joyful and happy message, for they had closed the door against themselves, so as to prevent God from offering them that comfort which they yet especially wished; but men, while they expect God to be propitious to them, do not yet give entrance to his grace, because they bolt up, as it were, their hearts with unbelief. We hence see why it was said, Cry to me, and I will answer thee
But this passage ought especially to be noticed; for we may hence conclude, that whenever we pine away in sorrow, or are worn out by affliction, it is our own fault, because we are tardy and slow to pray: for every one who cries acknowledges that God is always nigh, as he promises in the Psalms, to those who truly call on him. That we are then sometimes worn out with long grief, and no comfort given to us, this happens, let us know, through our neglect and sloth, because we cry not to God, who is ever ready to answer us, as he here promises.
And he says, I will declare to thee great things, and of hidden things thou knowest not So are the words literally; but they cannot be thus suitably rendered: then we may read, “and things hidden which thou knowest not,” or, “I will make thee acquainted with hidden things which are unknown to thee.” It may, however, be asked, why God called those things hidden, of which Jeremiah had already prophesied? The answer is obvious, — that they had, as it were, made void all the promises of God, and the holy man might, have been even confounded, when he saw that God’s favor was thus rejected; for it was reasonable to conclude, that as the people obstinately rejected the hope of deliverance, it was all over with them, and that their condition was, as it were, hopeless. We hence see that those things are often hidden to us which God has again and again made known to us; for either they do not immediately penetrate into our minds, or the memory of them is extinguished, or faith is not so vigorous in us as it ought to be, or we are disturbed and confounded by obstacles thrown in our way.