2 Peter 1:8-9

8You should continue to grow as believers in all these ways. Then it will show that you really know our Lord Jesus Christ. People will see that your life has good results.

9But some people do not live in these good ways. They do not think that these things are important. They are like blind people. They cannot really see anything properly. They have forgotten that God has made them clean from all the sins that they did in past times.