What does Jesus mean when He says He stands at the door and knocks?

In Revelation 3:20, Jesus declares, 'Behold, I stand at the door and knock.' This imagery represents His persistent desire to fellowship with believers and emphasizes His initiative in salvation. Contrary to popular interpretation, the act of knocking does not imply that Christ is powerless, but rather that He is extending an invitation to commune with those who are willing to listen and open their hearts to Him. His sheep hear His voice, as He says in John 10:27, underscoring that the ability to respond comes from His divine calling and grace. Thus, it is a call to not ignore His invitation but to embrace the relationship He offers.