What must I do to be saved?
The book of Acts chapter sixteen records an incident of a man coming to Paul and Silas asking this very question, "Sirs, what must I do to be saved?". The answer that was given to this truthful enquirer is just as true now as it was then, "Believe on the Lord Jesus Christ, and thou shalt be saved..." In order to believe on the Lord Jesus Christ, you must first know who he is.
He is the virgin born Son of God
At the fall of man in the Garden of Eden, God promised mankind the seed of a woman that would bruise the head of the serpent. This man would not have the bloodline of Adam running through his veins. Seeing that every man who has ever been born of Adam has inherited a sin nature, this man born of a woman and not of Adam, would not inherit this sin nature. He was not of natural descent, but was born supernaturally by the Holy Spirit. The body that was formed in the womb of Mary was not God, but God moved into that body and became flesh (Luke 1:35, Hebrews 10:5, John 1:1,14, 1st Timothy 3:16). Therefore the seed of the woman promised in Genesis chapter three was and is fully God and fully man, that seed is Jesus Christ. So because of the incarnation of Jesus Christ (that is, God becoming a man) several things can be noted about the Lord: he was and is sinless (2nd Corinthians 5:21), and he is the only savior (Isaiah 43:11).
What does that mean to me?
As noted before, mankind as a whole fell when Adam transgressed in the garden. Because of Adam's disobedience we were all made sinners, and have inherited this wicked nature to sin (Romans 5:19). Since the main attribute of God is holiness, we, because of our sin, have been separated from the one and true God, for light cannot dwell with darkness (Isaiah 59:2, 2nd Corinthians 6:14). As the light of the word of God is illuminated, the problem becomes entirely evident; it is sin. A man in his sin is a man without God and without hope in the world, headed for a devil's hell. Thus we can conclude that in order for man to ever be reconciled to God, sin must be dealt with.
It is sad to observe that the vast majority of religions today believe that the way to God is through being a good person. It is true that if one were totally good, it would bring him to God, but the only problem with that route is there are none that are good (Romans 3:10). Only someone who is outright oblivious to his sin and unrighteousness, or wholly ignorant of the holiness of God, could ever think he was good enough, by his own works, to earn eternal life. The blatant fact is that since the fall of man until now, "all have sinned and come short of the glory of God" (Romans 3:23).
We need the saviour?
Our condition is one of utter hopelessness. We are sinful, wretched creatures, filled with all manner of unrighteousness. We have absolutely no merit of our own, and we will never be able to climb out of the pit of sin that we have dug, for our good cannot undo the wrong we have allready done. So as we stand here lost in the storms of sin, our need is for someone to come and save us from this mess we've gotten ourselves into. Jesus Christ is just that saviour. Though every man born of Adam has sinned, and for his sins must receive the penalty of death(Romans 6:23), there is one who has never sinned. We know that Jesus died on the cross, but if he never sinned, than he was not deserving of the death he died. He wasn't due death for he never committed the sin that would make him worthy of it. Christ died for our sins. He paid the ransom for us. He didn't die for himself; he died in our place. The very God of creation humbled himself, and took upon himself the form of a servant, and became obedient unto death, even the death of the cross(Philippians 2).
The gospel according to the Holy Scriptures is that, "Christ died for our sins according to the scriptures; And that he was buried, and that he rose again the third day according to the scriptures" (1 Corinthians 15). So the sins that would eventually take a man enslaved by them to hell, Christ died for. When we consider the death of Christ on the cross, the question that instantly comes to mind is, "What must I do to receive this sacrifice? There are many today who hate God and want nothing to do with the savior, does Jesus save them as well?" There is only one way to be saved; it is through the shed blood of Jesus Christ, but the blood is applied to your soul by no other way than by faith in the Lord Jesus Christ (Romans 5:1, Acts 16:31, Romans 3:25, Romans 3:28, Romans 4:5). When you trust Christ as your savior, he gives you his righteousness, and takes your sin from you (2nd Corinthians 5:21), so now there is nothing preventing you from coming boldly before God almighty. The sin that once hindered God's fellowship with man has been broken by the sacrifice of Christ on the cross. The moment you trust that sacrifice as the payment for your sins, fellowship with God is restored now and for all eternity.
It should be very clear that sin is the problem of your life. Not only is it destroying your own life, but it is offensive to the God who made you. Come to the Lord with a broken heart, knowing you're a sinner and knowing you need his mercy and grace. If you humbly come to the saviour, trusting only the sacrifice he made for your soul on the cross at calvary, the Bible says He will save you that very moment, the blood will be applied to your soul, and the Holy Spirit will take up residence within you. The Lord has changed many lives for now and eternity, and the Scriptures promise that he can do the same for you. "Whosoever shall call upon the name of the Lord shall be saved" (Romans 10:13).