'Door' in the Bible

"How could you have agreed together to test the Spirit of the Lord?" Peter asked her. "Listen! The feet of the men who buried your husband are at the door, and these men will carry you outside as well."

That very night, before Herod was going to bring him out, Peter, bound with two chains, was sleeping between two soldiers, and guards in front of the door were watching the prisoners.

When they arrived, they called the church together and told them everything that God had done with them and how he had opened a door so that gentiles would believe.

Then he left that place and went to the home of a man named Titius Justus, who worshipped God and whose house was next door to the synagogue.