This is to know some facts about Jesus, but it is not to have a saving knowledge of Him. There is a huge difference in having a head knowledge to that of a heart knowledge. There are many who have a factual knowledge of Jesus but no heart knowledge. They have never developed a personal relationship with Jesus. Their relationship is superficial because their lives do not reflect their knowledge.
Paul tells us his desire in life was to know Jesus. He writes in Phil. 3:10, “that I may know Him and the power of His resurrection, and the fellowship of His sufferings, being conformed to His death.” To Paul to know Jesus was to have a real life changing experience, not simply to quote some facts about Christ. He makes this clear in Rom. 6 when he describes a person who has been united with Christ in baptism as one who is dead to sin. Sin no longer has dominion over him. He is now a servant of righteousness. This one has obeyed from the heart and has become simply a Christian. He then begins a journey with Jesus, ever striving to please Him. Peter says we are to grow in the grace and knowledge of our Lord and Savior Jesus Christ.
This knowledge includes a trust that depends upon the blood of Jesus to save us. It includes a faith that relies on the person and work of Christ at Calvary.
Do you have a saving knowledge of Jesus? Or do you just know some things about Him?