Then Saul built an altar to the LORD. This was the first altar that he built to the LORD.
1 Samuel 14:35
Surrounding context
14:34 Then Saul said, "Disperse yourselves among the people, and say to them, "Bring me here every man's ox and every man's sheep, slaughter them here, and eat; and do not sin against the LORD by eating with the blood."' So every one of the people brought his ox with him that night, and slaughtered it there.
14:35 Then Saul built an altar to the LORD. This was the first altar that he built to the LORD.
14:36 Now Saul said, "Let us go down after the Philistines by night, and plunder them until the morning light; and let us not leave a man of them." And they said, "Do whatever seems good to you." Then the priest said, "Let us draw near to God here."