[:en]Paul reminded the Corinthian Christians about two things – sexual immorality and boasting. He cautioned them against boasting as it is like a yeast that work through the whole batch of dough. He told them to replace the old yeast of malice and wickedness to new yeast of sincerity and truth (vs. 6-8) He also advised them not to associate with anyone who calls himself a brother but is sexually immoral or greedy, an idolater or a slanderer, a drunkard or a swindler. (v. 11)[:]