'Angel' in the Bible

Choose thee, either three years of famine, or three months to be destroyed before thine adversaries while that the sword of thine enemies overtaketh thee, or three days the sword of Jehovah and the pestilence in the land, and the angel of Jehovah destroying through all the borders of Israel. And now consider what word I shall bring again to him that sent me.

And God sent an angel to Jerusalem to destroy it; and as he was destroying, Jehovah beheld, and he repented him of the evil, and said to the angel that destroyed, It is enough; withdraw now thine hand. And the angel of Jehovah stood by the threshing-floor of Ornan the Jebusite.

And David lifted up his eyes, and saw the angel of Jehovah stand between the earth and the heavens, and his sword drawn in his hand, stretched out over Jerusalem. And David and the elders, clothed in sackcloth, fell on their faces.

And the angel of Jehovah commanded Gad to say to David, that David should go up and rear an altar to Jehovah in the threshing-floor of Ornan the Jebusite.

And Ornan turned back and saw the angel; and his four sons with him hid themselves. Now Ornan was threshing wheat.

And Jehovah spoke to the angel; and he put up his sword again into its sheath.

But David could not go before it to inquire of God; for he was afraid because of the sword of the angel of Jehovah.