1 Corinthians 5:11-13 . . .. 12 For what do I have to do with judging those outside? Do YOU not judge those inside, 13 while God judges those outside? “Remove the wicked [man] from among yourselves.”
We are told to only judge the ones in our church in a sense and to remove the wicked from among ourselves. Next, it says that God judges those outside. They are judged according to the criteria already given.
We are told to preach the gospel of salvation of Christ to others and that baptism removes sin from the Christian who though a sinner lives as pure a life as is possible for human beings.
If you choose not to become Christian, I have to tell you that you are now in the position of someone not having a ticket for a trip; you might get lucky and find an empty seat, but you may not.
If I tell you that about 90% or more of humanity shall be destroyed in the soon to come tribulations on earth, natural disasters, war (perhaps WWIII) - wouldn't you prefer having a ticket so that if you died, you would be assured of coming into Paradise. While it is clear that some non-Christians will survive, otherwise the earth will be empty in many places, how they will survive is the question?
Thus, all I can tell you that not being a Christian is gambling with one's life.
The judge is Christ. How will he judge?
27 For the Son of man shall come in the glory of his Father with his angels; and then shall he render unto every man according to his deeds.
That is all I have. If you reject Christ now, is that reason for dismissal?! It is at the very least a dangerous road.