The Bible commands each of us, as believers in Jesus Christ, to be ready to answer this question for someone who asks you to explain the hope that exists in you.
1 Peter 3:15
15 But sanctify the Lord God in your hearts: and be ready always to give an answer to every man that asketh you a reason of the hope that is in you with meekness and fear:
My answer is this, I know that Jesus is the Christ, personally. I know it personally. I have proven it in my own life. Not only does history tell me that He is the Son of God. Not only does the Bible tell me He is the Son of God. Not only does the Holy Spirit tell me that He is the son of God, but I know it to be true through personal experience, for personal reasons. I can testify that I know, that I know, that I know, that Jesus Christ is the Son of the Living God.
Ask yourself, Is Jesus Christ real to you? My answer to that question is Yes, he's real. He is real to me. I know, I am sure that he's the Christ, the son of the Living God.
Jesus Christ alone is the answer to your heart's need. There is nowhere else to go. Where else will you go if you don't go to Jesus? No one else has the answer to your sin. No one else can fill the longing of your heart. Nobody else can give you peace that passeth understanding. Nobody else has the words of eternal life. Nobody else walked out of that grave, but Jesus did, and I want you to know and be sure that He is the son of God.
Click on the link below to hear a message on why I believe in Jesus Christ, and if God calls upon you to talk to someone this afternoon about why you believe in Jesus Christ, then you should be able share why you believe in Him.