To open wide the mouth.

Be not far from me; for trouble is near; for there is none to help. Many bulls have compassed me: strong bulls of Bashan have beset me round. They GAPED upon me with their mouths, as a ravening and a roaring lion. ( Psalm 22:11-13 )

Source: A King James Dictionary. (Used with permission. Copyright © Philip P. Kapusta)

Bibliography Information

"Entry for 'Gape'". A King James Dictionary.