'Door' in the Bible

And a certain man that was lame from his mother's womb was carried, whom they laid daily at the door of the temple which is called Beautiful, to ask alms of them that entered into the temple;

But Peter'said unto her, How is it that ye have agreed together to try the Spirit of the Lord? behold, the feet of them that have buried thy husband are at the door, and they shall carry thee out.

And when Herod was about to bring him forth, the same night Peter was sleeping between two soldiers, bound with two chains: and guards before the door kept the prison.

And when he knocked at the door of the gate, a maid came to answer, named Rhoda.

And when they were come, and had gathered the church together, they rehearsed all things that God had done with them, and that he had opened a door of faith unto the Gentiles.