'Oath' in the Bible

and the men of Israel were worn out that day, for Saul had placed the troops under an oath: “The man who eats food before evening, before I have taken vengeance on my enemies is cursed.” So none of the troops tasted any food.

When the troops entered the forest, they saw the flow of honey, but none of them ate any of it because they feared the oath.

However, Jonathan had not heard his father make the troops swear the oath. He reached out with the end of the staff he was carrying and dipped it into the honeycomb. When he ate the honey, he had renewed energy.

Saul listened to Jonathan’s advice and swore an oath: “As surely as the Lord lives, David will not be killed.”