'Burnt Sacrifice' in the Bible

When they had brought in the Ark of God they set it in the tent that David had pitched for it. And they brought burnt sacrifice and peace offerings before God.

And Ornan said to David, "Take it to thee, and let my lord king do that seemeth good in his eyes. See, I give thee oxen for a burnt sacrifice, and the threshing sleds for wood, and wheat for meat offering: I give it all."

And to wait on every offering of burnt sacrifices unto the LORD, the Sabbaths and first days of the months, and other feastful days by number and custom, was their office ever before the LORD.