Hebrew 4.2

Hbr 4:2 For unto us was the gospel preached, as well as unto them: but the word preached did not profit them, not being mixed with faith in them that heard [it].

You have read about the truth of His substitutionary death in the Bible and perhaps in the newspaper, and have heard about it from the pulpit. But you have never specifically come to God, accepting His Son as your Savior. You understand that He died for the world, yet you have not accepted Him as the One bearing your sins. You have heard and known in your mind; nevertheless, you have not believed with your heart. You stop after you have heard and known; you do not proceed any further to seek the grace of God. You may even have become tired of hearing the word concerning the cross of Christ. Your problem is: you have not united or mixed faith with the word you have heard (Heb. 4.2). So that you are still a perishing soul. You know, but you have not believed and received the Lord Jesus as your Savior by faith; and hence your knowledge will not help you in the least. Alas, you still belong to hell. The blood which is in the basin but not on the lintel and side-posts cannot save you. What does it profit if your mind knows the gospel but your heart has not believed in the Lord Jesus (Rom. 10.10)? Knowing will not save you; it is believing that saves (Acts 16.31; John 3.16).