'Forehead' in the Bible

They do all their deeds to be seen by men; for they make their phylacteries (tefillin) wide [to make them more conspicuous] and make their tassels long.

Then another angel, a third one, followed them, saying with a loud voice, “Whoever worships the beast and his image and receives the mark [of the beast] on his forehead or on his hand,

And on her forehead a name was written, a mystery: “BABYLON THE GREAT, THE MOTHER OF PROSTITUTES (false religions, heresies) AND OF THE ABOMINATIONS OF THE EARTH.”