to which he called you through our Gospel, for the obtaining of the glory of our Lord Jesus Christ.

 We have to remember one thing. Almost all the Eastern faiths believed in a power of evil as they believed in a power of good; and believed, too, in a kind of battle between God and this power of evil. For instance, the Babylonians had a story that Tiamat, the dragon, had rebelled against Marduk, the creator, and had in the final battle been destroyed. Paul was dealing in a set of ideas which were common property. The Jews, too, had that idea. They called the Satanic power Belial or, more correctly, Beliar. When the Jews wished to describe a man as utterly bad they called him a son of Beliar ( Deuteronomy 13:13; 1 Kings 21:10; 1 Kings 21:13; 2 Samuel 22:5). In 2 Corinthians 6:15 Paul uses this term as the opposite of God. This evil incarnate was the antithesis of God. The Christians took this over, later than Paul, under the title Antichrist ( 1 John 2:18; 1 John 2:22; 1 John 4:3). Obviously such a power cannot go on existing for ever in the universe; and there was widespread belief in a final battle in which God would triumph and this force of anti-God would be finally destroyed. That is the picture with which Paul is working. 