The video is a production by the European Young Socialists, who are extolling the virtues of European integration. I am not really interested in the ins and outs of the video and I haven't watched it through. That is why there are no links to it in this post. I am however very interested in the lyrics of the song that can be found here.
Here are those lyrics:
For yourselves know perfectly that the day of the Lord so cometh as a thief in the night.
For when they shall say, Peace and safety; then sudden destruction cometh upon them, as travail upon a woman with child; and they shall not escape.