'Master' in the Bible

knowing that Christ, having been raised from the dead, is never to die again; death no longer is master over Him.

For sin shall not be master over you, for you are not under law but under grace.

Or do you not know, brothers (for I am speaking to those who know the law), that the law is master of a person for as long a time [as] he lives?

Do not be overcome and conquered by evil, but overcome evil with good.

Who art thou that judgest another man's servant? to his own master he standeth or falleth. Yea, he shall be holden up: for God is able to make him stand.