'Knock' in the Bible

And I tell you, ask and it will be given to you; seek and you will find; knock and it will be opened for you.

when once the master of the house has gotten up and shut the door, and you begin to stand outside and knock [on] the door, saying, 'Lord, open [the door] for us!' And he will answer [and] say to you, 'I do not know where you are from!'