'Door' in the Bible

Then Peter said to her, “How could you two have agreed together to put the Spirit of the Lord to the test? Look! The feet of those who have buried your husband are at the door, and they will carry you out also.”

The very night before Herod was to bring him forward, Peter was sleeping between two soldiers, bound with two chains, and sentries were in front of the door guarding the prison.

Arriving there, they gathered the church together and began to report [in great detail] everything that God had done with them and how He had opened to the Gentiles a door of faith [in Jesus as the Messiah and Savior].

Then he moved on from there and went to the house of a man named Titius Justus, who worshiped God and whose house was next door to the synagogue.