Is Jesus knocking at the Door?

Doesn’t the Bible say that Christ stands at the door and knocks, and that we must let Him in?

Bible: Revelation 3:14, Rev.3:16, Rev.3:17, Rev.3:19, Rev.3:20, Rev.3:22

In Revelation chapter 3 Christ says, “Behold, I stand at the door and knock. If anyone hears My voice and opens the door, I will come in to him and dine with him, and he with Me” (v. 20). This statement was not directed to unbelievers but to the church of Laodicea (v. 14). “He who has an ear, let him hear what the Spirit says to the churches” (v. 22). Laodicea was a backslidden church; it was lukewarm (v. 16) and proud (v. 17). Christ describes the church as “wretched, miserable, poor, blind, and naked” (v. 17). The Laodicean church by its behavior had broken the blessed fellowship between itself and Jesus Christ; therefore, Christ tells the church to “be zealous and repent” (v. 19) and asks the church to “open the door” (v. 20) in order to restore that blessed fellowship between the bride and bridegroom: “I will come in to him and dine with him, and he with Me” (v. 20). This passage was given specifically to the church of Laodicea, a real church with real problems. While this passage can and should be applied to all lukewarm churches throughout history, it cannot and should not be applied to unbelievers.

http://www.reformedonline.com/view/reformedonline/newbirth.htm