¹⁷ Brothers and sisters, I want you to be very careful of those who cause arguments and hurt people’s faith by teaching things that are against what you learned. Stay away from them. ¹⁸ People like that are not serving our Lord Christ. They are only pleasing themselves. They use fancy talk and say nice things to fool those who don’t know about evil. ¹⁹ Everyone has heard that you do what you were taught, and I am very happy about that. But I want you to be wise about what is good and to know nothing about what is evil.