2:21 So if someone cleanses himself of such behavior, 1 he will be a vessel for honorable use, set apart, useful for the Master, prepared for every good work.
2 Timothy 3:15
3:15 and how from infancy you have known the holy writings, which are able to give you wisdom for salvation through faith in Christ Jesus.
1 tnGrk “from these,” alluding to the errors and deeds of the false teachers described in vv. 14-19.