Commentaries:
Robertson's Word Pictures (NT)
According to the course of this world (kata ton aiwna tou kosmou toutou). Curious combinations of aiwn (a period of time), kosmov (the world in that period). See I Corinthians 1:20 for "this age" and I Corinthians 3:9 for "this world."
The prince of the power of the air (ton arxonta thv ecousiav tou aerov). Ahr was used by the ancients for the lower and denser atmosphere and aiqhr for the higher and rarer. Satan is here pictured as ruler of the demons and other agencies of evil. Jesus called him "the prince of this world" (o arxwn tou kosmou toutou, John 16:11).
That now worketh (tou nun energountov). Those who deny the existence of a personal devil cannot successfully deny the vicious tendencies, the crime waves, in modern men. The power of the devil in the lives of men does explain the evil at work "in the sons of disobedience" (en toiv uioiv thv apeqiav). In Ephesians 5:6 also. A Hebrew idiom found in the papyri like "sons of light" (I Thessalonians 5:5).
Other Robertson's Word Pictures (NT) entries containing Ephesians 2:2:
2 Corinthians 4:4
Ephesians 2:3
Ephesians 2:11
Ephesians 5:6
1 Peter 1:14
1 Peter 4:3
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