This is a picture of the Lord Jesus at the heart’s door of the sinner.This is the picture of Christ we have in Revelation. He stands at the door and knocks. He will not crash the door. Regardless of what some extremists say on this matter of election, the Lord Jesus has moved heaven and hell to get to the door of your heart, but when He gets there, He will stop and knock. You will have to open the door to let Him in.
“I will come in to him, and will sup with him, and he with me.” This speaks of fellowship, of feeding on the Word of God, and of coming to know Jesus Christ better.