'Opening' in the Bible

as it hath been written in the Law of the Lord, -- 'Every male opening a womb shall be called holy to the Lord,'

And they said one to another, 'Was not our heart burning within us, as he was speaking to us in the way, and as he was opening up to us the Writings?'

opening and alleging, 'That the Christ it behoved to suffer, and to rise again out of the dead, and that this is the Christ -- Jesus whom I proclaim to you.'

and in behalf of me, that to me may be given a word in the opening of my mouth, in freedom, to make known the secret of the good news,

doth the fountain out of the same opening pour forth the sweet and the bitter?

'And to the messenger of the assembly in Philadelphia write: These things saith he who is holy, he who is true, he who is having the key of David, he who is opening and no one doth shut, and he shutteth and no one doth open!