The reason? If you have never made Jesus the Lord of your life, then you are separated from God by sin. You are the reason God sent Jesus to the cross. John 3:16 says, “For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.” God loved you so much that He gave His only begotten Son for you.
The Bible says God made Jesus, who knew no sin, to be sin for us. Sin was the reason Jesus came to earth. He died on the cross and went to hell for one reason: to pay the price for sin. Once that price was paid, Jesus was raised from the dead, triumphant over Satan; and the sin problem was taken care of.
God does not hold your sin against you. The only thing keeping you from becoming a child of God is failure to turn from your present world and your present god, which is Satan, and make Jesus the Lord over your life.
So the only reason to be saved is that Jesus paid the sin price for you, He was your substitute. Heaven has it recorded that you have been set free. But that doesn’t mean you will automatically go to heaven. Even though God sent Jesus to pay for your sin—even though He holds nothing against you—you can still go straight to hell. Why? Because you have not made the choice to receive Jesus as your own personal Lord and Savior, to accept His sacrifice as yours. You have a free will. You have the right to choose your own destiny, God will not force you to receive salvation. The choice is yours. You can go straight to hell and God will not lift a finger to stop you. He did all He is going to do when He sent Jesus into the world.
Many have no idea of what being saved means. You cannot be saved until you first confess (agree with God) that you are a sinner, lost, on your way to hell, and you are in need of a Savior.
Romans 3:23 For all have sinned, and come short of the glory of God
Romans 6:23 For the wages of sin is death; but the gift of God is eternal life through Jesus Christ our Lord.
Salvation takes place the very moment that you accept or embrace Jesus Christ as your Lord and Savior, totally trusting in the complete and finished work of Jesus, receiving His Life, Death, Burial and Glorious Resurrection as full payment for your past, present, and future sins. Romans 10:9-10
Here I am! I stand at the door and knock. If anyone hears my voice and opens the door, I will come in and eat with that person, and they with me.