These words are specifically used in the book of Revelation. I used to wonder at the "slave" reference. Such an archaic, cruel system surely did not exist in the modern world?
The immigration flood into western countries is not an accident. This is open people trafficking. Slavery. All being done under the guise of bleeding-heart humanitarianism. These people have obviously been promised a better life but are, instead, being absorbed into a massive slave trade. The media keep telling us how short of labour we are in the UK. Nobody to pick our fruit. Fewer factory workers. And the hospitality sector is desperately short of staff. Hmmm. There is a lot of money to be made in the people trafficking business.
In the first link is a photo of an internment camp for these "refugees". To all intents and purposes, it more than resembles the slave camps the Jewish people were imprisoned in - in WW2. Honestly - take a look. In the 2nd link is an article about how hundreds of child refugees go missing in Britain. It is shocking.
We live in perilous times.