It appears there might be a typo in your reference. There is no "11 Timothy" in the Bible; it should be "2 Timothy." The correct reference is 2 Timothy 1:12. This verse reads:
"For this reason I also suffer these things; nevertheless I am not ashamed, for I know whom I have believed and am persuaded that He is able to keep what I have committed to Him until that Day." (NKJV)
In this verse, the Apostle Paul is expressing his confidence in his faith despite facing suffering and hardship. He declares that he is not ashamed of his circumstances or of the gospel because he knows in whom he has believed—referring to Jesus Christ. Paul is convinced and persuaded that Christ is able to guard and protect what Paul has entrusted to Him, namely his soul and his life, until the day of Christ's return.
This verse speaks to the unwavering faith and assurance that believers can have in Jesus Christ, even in the midst of trials and challenges.