“… and knock: If any man hear my voice and open the door, I will come in to him, and will sup with him, and he with me.”(Revelation 3:20 ASV)
Who is in need of conversion? We usually think of people who have behaved in a bad way or who don’t know God at all. The passage quoted above is a famous proof text in order to encourage non-Christians to let Jesus into their lives.
We find these words in the last book of the Bible – the Revelation of John. In chapters 2 and 3, the Lord Jesus has a special message to certain churches in Asia Minor. It was a critical situation for Christians toward the end of the first century: There was persecution from the outside, at the same time false teachings threatened the church from inside. It was a message for people who already were Christians.
One of those churches met in Laodicea – in the southwest of what is Turkey today. The content of the letter to this church (chapter 3, verses 14-22) leaves no doubt about the fact that the Christians there had become unfaithful to God and were in a lost condition. Jesus calls them “lukewarm” (verse 16), “miserable”, “poor”, “blind and naked” (verse 17). He was no longer in their midst like he had promised to his true church in the beginning (Matthew 18:20). Instead he stood outside at the door (verse 20). His knocking and asking to be let in is symbolic for the command to repent which we can literally read about in verse 19.
“As many as I love, I reprove and chasten: be zealous therefore, and repent.”(ASV)
It is not about non-Christians who simply open the “door to their heart” and experience salvation in that same moment. Rather it is about Jesus who stands at the door of an apostate church, asking the Christians there to turn around.
There is yet another Bible passage which is being used in many well-meaning Christian flyers as a conversion text for non-Christians:
If we say that we do not have any sin, we are deceiving ourselves and we’re not being truthful to ourselves. If we make it our habit to confess our sins, in his faithful righteousness he forgives us for those sins and cleanses us from all unrighteousness.1st John 1:8-9 (ISV)
Here the context likewise refers to people who are already following the Lord. The words in bold signify that the Christian author (John) is including himself in these words of admonition.
For the non-Christian there are some additonal requirements according to God’s word: If Christ is to live in one’s heart, there must be faith (Ephesians 3:17). This faith is produced through an honest encounter with the Bible message (Romans 10:17). It is not a theoretical faith but results in obedience (John 3:36; Hebrews 5:9). This includes of course turning away from old destructive habits and from egotism. This step is so radical that it is compared with Jesus’ dying on the cross (Galatians 5:24). Salvation would be impossible without the death of Jesus and at the point of conversion one fully trusts in the grace of God’s saving hand (Ephesians 2:8). One is buried with Christ which happens in baptism (Romans 6:3-7). Right then there begins a new life with the risen Lord. Have you become a Christian this way?