2 Timothy 1:14

However, you are not in the flesh but in the Spirit, if indeed the Spirit of God dwells in you. But if anyone does not have the Spirit of Christ, he does not belong to Him.

O Timothy, guard what has been entrusted to you, turning aside from godless and empty chatter and the opposing arguments of what is falsely called knowledge—

For this reason I also suffer these things, but I am not ashamed; for I know whom I have believed and I am convinced that He is able to guard what I have entrusted to Him until that day.