Revelation 7:3

OLBHeb;

A manifest allusion to Ezekiel 9:4, and, as some think, to the usage of some eastern countries, for masters to set their names upon the forehead of their slaves, by which they were known to be theirs, as we mark our sheep or other beasts. Men as vainly dispute what this seal should be, as what the t meant in Ezekiel 9:1, the mark set upon those that mourned for the abominations of Jerusalem. The place where they were to be sealed signified the end of their sealing to be not so much for confirmation, for which seals are used, as notification, to signify to others they belong to God; so as it was of the same use as the blood upon the two side-posts and the upper door-posts of the Israelites in Egypt, Exodus 12:13.