Ye adulterers and adulteresses,— Great wickedness, and especially idolatry, among the Jews, is often represented as adultery. What follows in this verse shews, that by adultery St. James meant spiritual idolatry, or a love of the world more than of God. See Matthew 6:24; Matthew 12:30. Luke 12:15; Luke 12:59. The word καθισταται signifies properly is adjudged; and there is a considerable emphasis in the expression: "It is declared and adjudged beyond controversy, that he is an enemy of God."
Related Commentaries of James 4:4
James 4:4
4 Ye adulterers and adulteresses, know ye not that the friendship of the world is enmity with God? whosoever therefore will be a friend of the world is the enemy of God.