6 Bible Verses about Vowing To Fast

All the people came to urge David to eat food while it was still day; but David took an oath, saying, “May God do so to me, and more also, if I taste bread or anything else before the sun sets.”

But the men of Israel were hard-pressed that day, because Saul had put the people under a curse, saying, “Cursed be the man who eats food before evening, and before I have taken vengeance on my enemies.” So none of the people ate any food.

But one of the people told him, “Your father strictly put the people under an oath, saying, ‘Cursed be the man who eats food today.’” And the people were exhausted [and hungry].

Now when day came, the Jews formed a conspiracy and bound themselves under an oath (curse), saying that they would not eat or drink until they had killed Paul.

They went to the chief priests and elders and said, “We have bound ourselves under a solemn oath not to taste anything [neither food nor drink] until we have killed Paul.

But do not listen to them, for more than forty of them are lying in wait for him, and they have bound themselves with an oath not to eat or drink until they have killed him. Even now they are ready, just waiting for your promise.”