'Master' in the Bible

knowing that Christ, [because he] has been raised from the dead, is going to die no more, death no longer being master over him.

For sin will not be master over you, because 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?

Who are you, who passes judgment on the domestic slave belonging to someone else? To his own master he stands or falls, and he will stand, for the Lord is able to make him stand.