'Knocking' in the Bible

I am sleeping, but my heart waketh: The sound of my beloved knocking! 'Open to me, my sister, my friend, My dove, my perfect one, For my head is filled with dew, My locks with drops of the night.'

for every one who is asking doth receive, and he who is seeking doth find, and to him who is knocking it shall be opened.

for every one who is asking doth receive; and he who is seeking doth find; and to him who is knocking it shall be opened.

and Peter was continuing knocking, and having opened, they saw him, and were astonished,