Do not be deceived: “Bad company corrupts good morals.” Become sober–minded as you ought, and stop sinning; for some have no knowledge of God. I speak this to your shame. (1 Corinthians15:33–34)
Paul warned the Corinthians that they should not be deceived about the danger of bad company. Homilia(company) basically means an association of people, but also can have the connotation of a lecture or sermon. It seems possible, therefore, that the Corinthians were both listening to some wrong teaching and associating with some evil people. Whether the teaching was in formal messages or not, it was bad and corrupting.
People who think wrongly invariably behave wrongly. Wrong behavior comes from wrong thinking, from wrong beliefs and wrong standards. It is impossible to associate regularly with wicked people without being contaminated both by their ideas and by their habits. The context implies that the bad company was teaching the heretical theology that there is no resurrection of the dead, and that bad theology had corrupted good morals. Continue reading

