1 Samuel 14:31-35

31That day, after the Israelites had struck down the Philistines from Mikmash to Aijalon, they were exhausted. 32They pounced on the plunder and, taking sheep, cattle and calves, they butchered them on the ground and ate them, together with the blood.

33Then someone said to Saul, “Look, the men are sinning against the LORD by eating meat that has blood in it.” “You have broken faith,” he said. “Roll a large stone over here at once.”

34Then he said, “Go out among the men and tell them, ‘Each of you bring me your cattle and sheep, and slaughter them here and eat them. Do not sin against the LORD by eating meat with blood still in it.’ ” So everyone brought his ox that night and slaughtered it there.

35Then Saul built an altar to the LORD ; it was the first time he had done this.