Have you ever thought, there must be a key to reaching the lost? There is! And it’s rusty through lack of use. Bible does actually call it “the key,” and its purpose is to bring us to Christ, to unlock the Door of salvation (John 10:9)
Jesus used it. So did Paul (Rom.3:19-20), Timothy (1Tim. 1:8-11), and James (2:10) Jesus said that lawyers had “hide the key,” and even refused to use it to let people enter into the Kingdom of God.
The Pharisees didn’t take it away. Instead they bent it out of shape so that it wouldn’t do its work (Mark 7:8). Jesus returned it to its true shape, just as Scriptures prophesied that He would do (Is.42:21).
Satan has tried to prejudice the modern Church against the key. He has maligned it, misused it, twisted it, and of course, hidden it. He hates it because of what it does.
In Acts 28:23 the Bible tell us that Paul persuaded sinners concerning Jesus “out of the law of Moses”. Bible tells us that the Law of Moses is good if it is used lawfully (1Timothy1:8). It was given by God as a “schoolmaster” to bring us to Christ (Galatians 3:24). Paul wrote that “I had not known sin, but by the law” (Rim.7:7). The Law of God (the Ten Commandments) is evidently the “key to knowledge” Jesus spoke of in Luke 11:52.
Likewise the modern Church should preach God’s Law so that sinners could receive the “knowledge of sin,” and recognize their need of the Savior.
My city is one of the intellectual centers of my country. We have a lot of educational and scientific institutions. And it stunning to see how the Law of God works. Indeed “every mouth stopped” (Rom.3:19) because it go round the mind, the place of arguments, and speaks right into the persons conscience.
“I do not believe that any man can preach the gospel who does not preach the Law. The Law is the needle, and you cannot draw the silken thread of the gospel through a man’s heart unless you first send the needle of the Law to make way for it.”