You adulterous people, don't you know that friendship with the world means enmity against God? Anyone who chooses to be a friend of the world becomes an enemy of God. (NIV)

You [are like] unfaithful wives [having illicit love affairs with the world and breaking your marriage vow to God]! Do you not know that being the world's friend is being God's enemy? So whoever chooses to be a friend of the world takes his stand as an enemy of God. (AMP)

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. (KJV)