以西結書 25:3

³ 說：你們當聽主耶和華的話。主耶和華如此說：我的聖所被褻瀆，以色列地變荒涼，猶大家被擄掠；那時，你便因這些事說：阿哈！

Knock

'Behold I stand at the door and knock,' as in Revelation 3:20, signifies the perpetual presence and workings of the Lord with man.