TSK
Treasury of Scripture Knowledge references in WEB.
He lifted up his eyes and looked, and saw that three men stood opposite him. When he saw them, he ran to meet them from the tent door, and bowed himself to the earth,
it happened on the third day, that behold, a man came out of the camp from Saul, with his clothes torn, and earth on his head: and so it was, when he came to David, that he fell to the earth, and did obeisance.
Ornan turned back, and saw the angel; and his four sons who were with him hid themselves. Now Ornan was threshing wheat.