2 Timothy 1:8; 2 Timothy 2:1; 2 Timothy 2:21

2 Timothy 1:8

8 Therefore do not be ashamed of the testimony of our Lord or of me His prisoner, but join with me in suffering for the gospel according to the power of God,

2 Timothy 2:1

1 You therefore, my son, be strong in the grace that is in Christ Jesus.

2 Timothy 2:21

21 Therefore, if anyone cleanses himself from these things, he will be a vessel for honor, sanctified, useful to the Master, prepared for every good work.