Deuteronomy 32:5. They have corrupted themselves, their spot is not the spot of his children.
The spot or blot here spoken of is said to be something that does not belong to the children of God. “Their spot is not of his children.” Allusion is supposed to be made here to the marks which idolaters put upon their persons, particularly on their foreheads, in honor of their deities. It is a very ancient practice, and probably existed before Moses’ time. Forbes, in his Oriental Memoirs, says that in India different idolatrous sects have different marks. These are specially common among the two principal sects, the worshipers of Siva and the worshipers of Vishnoo. The marks are horizontal and perpendicular lines; crescents or circles; or representations of leaves, eyes, and other objects. They are impressed on the forehead by the officiating Brahmin with a composition of sandal-wood dust and oil, or the ashes of cow-dung and turmeric. The colors are red, black, white, and yellow. In many cases these marks are renewed daily.
Zophar may have referred to a similar custom when he spoke to Job about lifting up his face without spot (Job 11:15). Eliphaz also spoke of lifting up the face to God (Job 22:26). Job himself subsequently denied that any blot was on his hands. Job 31:7. In the Revelation of John there are several references to idolatrous marks on the forehead and hands. See Revelation 13:16; 14:9; 19:20; 20:4.