'Aghast' in the Bible

They [of Babylon] will be shocked and terrified,Pains and anguish will grip them;They will be in pain like a woman in childbirth.They will stare aghast and horrified at one another,Their faces aflame [from the effects of the unprecedented warfare].

For he did not [really] know what to say because they were terrified [and stunned by the miraculous sight].

In fact, so terrifying was the sight, that Moses said, “I am filled with fear and trembling.”