'Door' in the Bible

Lot went outside to them, shut the door behind him,

But they replied, "Get out of the way! This man came here as a foreigner, and now he's acting like a judge! So we're going to deal more harshly with you than with them." Then they pushed hard against the man (that is, against Lot), intending to break down the door.

But the angels inside reached out, dragged Lot back into the house with them, shut the door,