the door is # 12_2KI_06_32 # But Elisha sat in his house, and the elders sat with him; and [the king] sent a man from before him: but ere the messenger came to him, he said to the elders, See ye how this son of a murderer hath sent to take away mine head? look, when the messenger cometh, shut the door, and hold him fast at the door: [is] not the sound of his master's feet behind him? 
the door is # 43_JOH_10_02 # But he that entereth in by the door is the shepherd of the sheep. 
the door is # 42_LUK_11_07 # And he from within shall answer and say, Trouble me not: the door is now shut, and my children are with me in bed; I cannot rise and give thee.