'Portion' in the Bible

Pay her back the way she also paid,and double it according to her works.In the cup in which she mixed,mix a double portion for her.

But as for cowards and the unfaithful, and the polluted, and murderers, fornicators, and those who practise magic or worship idols, and all liars--the portion allotted to them shall be in the Lake which burns with fire and sulphur. This is the Second Death."

If anyone takes away any words from the book of this prophecy, God will take away his portion of the tree of life and the holy city that are described in this book.