New Revised Standard Version
Then all the people came to persuade David to eat something while it was still day; but David swore, saying, “So may God do to me, and more, if I taste bread or anything else before the sun goes down!”

Contemporary English Version
Then they brought some food to David and told him he would feel better if he had something to eat. It was still daytime, and David said, "I swear to God that I won't take a bite of bread or anything else until sunset!"

New American Bible
Then they went to console David with food while it was still day. But David swore, “May God do thus to me, and more, if before the sun goes down I eat bread or anything else.”

Douay-Rheims Bible
And when all the people came to take meat with David, while it was yet broad day, David swore, saying: So do God to me, and more also, if I taste bread or any thing else before sunset.

And when all the people came to take meat with David, while it was yet broad day, David swore, saying: So do God to me, and more also, if I taste bread or any thing else before sunset.

cause

1 Samuel 12:17 Is it not wheat harvest to day? I will call upon the Lord, and he shall send thunder and rain: and you shall know, and see that you yourselves have done a great evil in the sight of the Lord, in desiring a king over you.

Jeremiah 16:7 And they shall not break bread among them to him that mourneth, to comfort him for the dead: neither shall they give them for their father and mother.

Ezekiel 24:17,22 Sigh in silence, make no mourning for the dead: let the tire of thy head be upon thee, and thy shoes on thy feet, and cover not thy face, nor eat the meat of mourners. . . .

So do

2 Samuel 3:9 So do God to Abner, and more also, unless as the Lord hath sworn to David, so I do to him,

Ruth 1:17 The land that shall receive thee dying, in the same will I die: and there will I be buried. The Lord do so and so to me, and add more also, if aught but death part me and thee.

till the

2 Samuel 1:12 And they mourned, and wept, and fasted until evening for Saul, and for Jonathan his son, and for the people of the Lord, and for the house of Israel, because they were fallen by the sword.

Judges 20:26 Wherefore all the children of Israel came to the house of God, and sat and wept before the Lord: and they fasted that day till the evening, and offered to him holocausts, and victims of peace offerings,