At the beginning of this chapter, the Apostle Paul is very emphatic that we should abstain from doing things that will bring down the brethren; Paul's point is to unite the church, to live in peace is to edify the church of Christ, at the time he wrote the letter, the problem was the food offered to idols. Still, in our times, we can apply it to alcohol, parties, tattoos, and participation in cultural celebrations such as "Halloween." We see three reasons why this part of the Scripture was written.
1. To clarify matters with love.
2. To edify the brother in love.
3. Not to sin against a brother who is weak in the faith.