When they fast, I will not hear their cry; and when they offer a burnt offering and a grain offering, I will not accept them: but I will consume them by the sword, and by the famine, and by the pestilence.
All Commentaries on Jeremiah 14:12 Go To Jeremiah 14
Tertullian of Carthage
Although God is by nature good, yet he is also just, and as the case requires. He knows how to heal but also how to strike. He brings peace, but he brings about evil. He desires repentance, yet he commands Jeremiah not to intercede for the sinful people, since, he says, even if they fast, I will not hear their prayer.