I Am Not Worthy

    This argument is different from the others in that it does not deny the reality of Christianity, but instead denies the possibility that you can be saved.  The argument is the following:

    "If God knows anything about me, and He knows everything about me, then He will not want to have anything to do with me.  I've stolen, lied, slept with half the town, murdered, etc...  Christians are holy, and I can never be holy.  I have already been condemned, and nothing can change that."

As is often the case, Jesus has the best answer for this, which he tells in the form of parable of the lost sheep. 

"What man among you having a hundred sheep and losing one of them would not leave the ninety-nine in the desert and go after the lost one until he finds it?  And when he does find it, he sets it on his shoulders with great joy and, upon his arrival home, he calls together his friends and neighbors and says to them, 'Rejoice with me because I have found my lost sheep.'  I tell you is just the same way there will be more joy in heaven over one sinner who repents than over ninety-nine righteous people who have no need of repentance." (Lk 15:4-7, parallel in Mt 18:11-14)

There is also the parable of the prodigal son.

Then he [Jesus] said, "A man had two sons, and the younger son said to his father, 'Father, give me the share of your estate that should come to me.'  So the father divided the property between them.  After a few days, the younger son collected all his belongings and set off to a distant country where he squandered his inheritance on a life of dissipation.  When he had freely spent everything, a severe famine struck that country, and he found himself in dire need.  So he hired himself out to one of the local citizens who sent him to his farm to tend the swine.  And he longed to eat his fill of the pods on which the swine fed, but nobody gave him any.  Coming to his senses he thought, 'How many of my father's hired workers have more than enough food to eat, but here am I, dying from hunger.  I shall get up and go to my father and I shall say to him, "Father, I have sinned against heaven and against you.  I no longer deserve to be called your son; treat me as you would treat one of your hired workers." '   So he got up and went back to his father.  While he was still a long way off, his father caught sight of him, and was filled with compassion.  He ran to his son, embraced him and kissed him.  His son said to him, 'Father, I have sinned against heaven and against you; I no longer deserve to be called your son.'  But his father ordered his servants, 'Quickly bring the finest robe and put it on him; put a ring on his finger and sandals on his feet.  Take the fattened calf and slaughter it.  Then let us celebrate with a feast, because this son of mine was dead, ad has come to life again; he was lost, and has been found.'  Then the celebration began.  (Lk 15:11-24)

No matter who you are, or what you have done, God still loves you and wants you to come home, because He is your Father.  Unlike human parents, however, God is a perfect parent.  "Can a mother forget her infant, be without tenderness for the child of her womb?  Even should she forget, I will never forget you. (Is. 49:15)"  Some Christians find it disturbing that those who have sinned are not sufficiently punished for their sins when they repent.  Jesus has an answer for them, in the continuation of the parable of the prodigal son:

Now the older son had been out in the field and, an his way back, as he neared the house, he heard the sound of music and dancing.  He called one of the servants and asked what this might mean.  The servant said to him, 'Your brother has returned and your father has slaughtered the fattened calf because he has him back safe and sound.'  He became angry, and when he refused to enter the house, his father came out and pleaded with him.  He said to his father in reply, 'Look, all these years I served you and not once did I disobey your orders; yet you never gave me even a young goat to feast on with my friends.  But when your son returns he swallowed up your property with prostitutes, for him you slaughter the fattened calf.'  He said to him, 'My son, you are here with me always; everything I have is yours.  But now we must celebrate and rejoice, because your brother was dead and has come to life again; he was lost and has been found.' " (Lk 15:25-32)

Finally, I must warn you that your repentance must be genuine.  You cannot scam God, and tell him that you have repented, but continue with your old life.  It is vital that every time you fall, you must repent again and strive to do better.  It may take many cycles of sin and repentance before you are truly home, but with every cycle, you will be closer.