'Opens' in the Bible

"Sanctify to me all of the firstborn, whatever opens the womb among the children of Israel, both of man and of animal. It is mine."

you are to dedicate to the LORD everything that first opens the womb. All the firstborn males of your livestock belong to the LORD.

And when Pharaoh stubbornly refused to let us go, the LORD killed every firstborn in the land of Egypt, from the firstborn of humans to the firstborn of animals. Therefore, I sacrifice to the LORD every male that first opens the womb, but I redeem every firstborn of my sons.

If a man opens a pit or digs a pit and does not cover it, and an ox or donkey falls into it,

"All that opens the womb is mine; and all your livestock that is male, the firstborn of cow and sheep.