This was a striking feature of oriental life, as seen practiced by Abraham in Genesis 18:2-8, and it continues in these days to a partial extent. It is enforced in the New Testament as a duty among Christians (Rom. 12:13; 1 Tim. 3:2; Titus 1:8; 1 Pet. 4:9). The fact is mentioned that by exercising hospitality “some have entertained angels unawares” (Heb. 13:2).