Jeremiah 14:12Meaning & Commentary from the Church Fathers

When they observe fasting, I will not listen: Fasting carries great significance, yet consider the nature of their fasts. What does Isaiah proclaim? For disputes and conflicts, you fast; but why do you fast on My behalf (Isaiah 58:4)? True fasting goes beyond simply refraining from food; it involves a spiritual abstinence of the heart. Just as virginity is not merely the absence of marriage, but is defined by purity and a devoted focus on the Lord, so too is fasting. The people of Nineveh also fasted, yet their merit with God did not stem from this practice. Instead, it was their turning away from sin that garnered divine favor. What benefit is there in refraining from consuming the flesh of animals, while indulging in violence against fellow humans?

The Lord instructed me not to intercede for this people for their benefit. Even when they observe fasts, I will not attend to their petitions, and should they present burnt offerings and sacrifices, I will not accept them. I will bring destruction upon them through the sword, famine, and pestilence. It is unwise to pray for one who has sinned unto death, as stated in the words of John: There is sin unto death; I say let him not pray for that (John 5:16). While all unrighteousness is sin, some sin does not lead to death.