2 Timothy 2:21; 2 Timothy 4:3

2 Timothy 2:21

21 If a man therefore purge himself from these, he shall be a vessel unto honour, sanctified, and meet for the master's use, and prepared unto every good work.

2 Timothy 4:3

3 For the time will come when they will not endure sound doctrine; but after their own lusts shall they heap to themselves teachers, having itching ears;