A fast — on Yom Kippur, about twenty-five hours without food or water
also written: tsom, zom
In Scripture World English Bible
Is such the fast that I have chosen? the day for a man to afflict his soul? Is it to bow down his head as a rush, and to spread sackcloth and ashes under him? Will you call this a fast, and an acceptable day to Yahweh? “Isn’t this the fast that I have chosen: to release the bonds of wickedness, to undo the bands of the yoke, and to let the oppressed go free, and that you break every yoke?
“Yet even now,” says Yahweh, “turn to me with all your heart, and with fasting, and with weeping, and with mourning.”
