1 Sam 14:24

וְאִֽישׁ־יִשְׂרָאֵ֥ל נִגַּ֖שׂ בַּיּ֣וֹם הַה֑וּא וַיֹּאֶל֩ שָׁא֨וּל אֶת־הָעָ֜ם לֵאמֹ֗ר אָר֣וּר הָ֠אִישׁ אֲשֶׁר־יֹ֨אכַל לֶ֜חֶם עַד־הָעֶ֗רֶב וְנִקַּמְתִּי֙ מֵאֹ֣יְבַ֔י וְלֹֽא טָעַ֥ם כָּל־הָעָ֖ם לָֽחֶם׃ ס

Now the men of Israel were in distress that day, for Saul had placed the troops under an oath, saying, “Cursed is the man who eats any food before evening, before I have taken vengeance on my enemies.” So none of the troops tasted any food.