'Opening' in the Bible

After coming into the house they saw the Child with Mary His mother; and they fell to the ground and worshiped Him. Then, opening their treasures, they presented to Him gifts of gold, frankincense, and myrrh.

He opened His mouth and began to teach them, saying,

Immediately coming up out of the water, He saw the heavens opening, and the Spirit like a dove descending upon Him;

Being unable to get to Him because of the crowd, they removed the roof above Him; and when they had dug an opening, they let down the pallet on which the paralytic was lying.

but his disciples took him by night and let him down through an opening in the wall, lowering him in a large basket.

Opening his mouth, Peter said:“I most certainly understand now that God is not one to show partiality,

and pray on my behalf, that utterance may be given to me in the opening of my mouth, to make known with boldness the mystery of the gospel,

Does a fountain send out from the same opening both fresh and bitter water?