1 Corinthians 1-6
Chapter 2, verse 9: "But as it is written, Eye hath not seen, nor ear heard, neither have entered into the heart of man, the things which God hath prepared for them that love him."
God is preparing a home in Heaven, for us, some day. We can not even begin to know what it will be like. Even though Revelations has given us many things to think about, we still have no idea what it will be like.
Chapter 5, verses 9-11: "I wrote unto you in an epistle not to keep company with fornicators:
Yet not altogether with the fornicators of this world, or with the covetous, or extortioners, or with idolaters; for then must ye needs go out of the world.
But now I have written unto you not to keep company, if any man that is called a brother be a fornicator, or couvetous, or an idolater, or a railer, or a drunkard, or an extortioner; with such an one no not to eat."
If we have a fellow Christian, who does any of these things, and does not repent of them, then we are told not to have anything to do with them. We're not even suppose to eat with them.
The next Chapters are Isaiah 23-28.