But you must continue in the things which you have learned and been assured of, knowing from whom you have learned them,
2 Timothy 3:14
Surrounding context
3:13 But evil men and impostors will grow worse and worse, deceiving and being deceived.
3:14 But you must continue in the things which you have learned and been assured of, knowing from whom you have learned them,
3:15 and that from childhood you have known the Holy Scriptures, which are able to make you wise for salvation through faith which is in Christ Jesus.