1 Samuel 17:15-17

Revised Standard Version

¹⁵ but David went back and forth from Saul to feed his father’s sheep at Bethlehem. ¹⁶ For forty days the Philistine came forward and took his stand, morning and evening.

¹⁷ And Jesse said to David his son, “Take for your brothers an ephah of this parched grain, and these ten loaves, and carry them quickly to the camp to your brothers;