Job 21:5

Verse Job 21:5. Mark me, and be astonished] Consider and compare the state in which I was once, with that in which I am now; and be astonished at the judgments and dispensations of God. You will then be confounded; you will put your hands upon your mouths, and keep silent.

Putting the hand on the mouth, or the finger on the lips, was the token of silence. The Egyptian god Harpocrates, who was the god of silence, is represented with his finger compressing his upper lip.