6 Bible Verses about Vowing To Fast

Then all the people came to persuade David to eat bread while it was still day; but David vowed, saying, “May God do so to me, and more also, if I taste bread or anything else before the sun goes down.”

Now the men of Israel were hard-pressed on that day, for Saul had put the people under oath, saying, “Cursed be the man who eats food before evening, and until I have avenged myself on my enemies.” So none of the people tasted food.

Then one of the people said, “Your father strictly put the people under oath, saying, ‘Cursed be the man who eats food today.’” And the people were weary.

When it was day, the Jews formed a conspiracy and bound themselves under an oath, saying that they would neither eat nor drink until they had killed Paul.

They came to the chief priests and the elders and said, “We have bound ourselves under a solemn oath to taste nothing until we have killed Paul.

So do not listen to them, for more than forty of them are lying in wait for him who have bound themselves under a curse not to eat or drink until they slay him; and now they are ready and waiting for the promise from you.”