Acts 20:28-30

28You who are leaders should be careful about how you live. Also take care of the group of people that the Holy Spirit has chosen you to lead. Keep them safe like shepherds who take care of their sheep. All the believers belong to God because his Son, Jesus, died for them. He bought them with his blood which poured out on the cross.

29I know that trouble will come to you after I leave. Bad people will come to teach you. They will cause trouble for the believers, like dangerous wild animals that attack sheep.

30Even men from your own group of believers will teach things that are not true. They want to deceive other believers, so that they leave you and join with them.