Immediately upon becoming a Christian, Saul began preaching. As he “increased all the more in strength,” he increased all the more in “proving that this Jesus is the Christ” (Acts 9:20). First of all, do you believe that Jesus is the Christ? It is essential to your salvation that you believe it (Acts 16:31; 18:28; John 20:31; 1 John 5:1). Now, the question is, can you prove it?
The truth that Jesus is the Christ is established (you yourself can teach this and prove this!) by showing (1) that Jesus was a real historical character, (2) that the testimony found in the New Testament regarding Jesus of Nazareth is factually accurate and perfectly reliable, (3) that Jesus of Nazareth fulfilled the Old Testament prophecies of the Messiah, (4) that Jesus did miraculous works which testified to His divine origin and power, (5) that Jesus indisputably died on the cross and was seen alive again after three days by hundreds of witnesses, etc.
Here are five proofs! Do you believe them? You can and must teach them (1 Pet. 3:15)!