For all that is in the world,
the lust of the flesh,
the lust of the eyes,
and the pride of life,
is not of the Father, but is of the world.
1 John 2:16
"This well-known passage identifies three fountainheads of ungodly power that will, if unchecked and unguarded, ensnare a believer into a sinful lifestyle.
Sensual power (lust of the flesh) is a body-oriented and emotion-driven reaction to fleshly appetites
that can never please God (Romans 8:8) and is in constant warfare with the Spirit of God (Galatians 5:17). We are told to “flee” these “youthful lusts” (2 Timothy 2:22) that are a “corruption” (2 Peter 1:4) of the “fearfully and wonderfully made” (Psalm 139:14) God-designed human body.
Visual power (lust of the eyes) is an intellect-oriented and imagination-driven stimulation of wishful thinking that will take control of behavior (Matthew 6:22-23) if not carefully curtailed (Job 31:1; 2 Peter 2:14). ... this kind of “lust” will “conceive” sin instead of merely reacting to it (James 1:13-15).
Personal power (the pride of life) is a self-oriented and ego-driven desire for dominance that has no ethic or limiting factor other than the praise of men, not God (John 12:43). Such pride, dominated by the “natural mind” (1 Corinthians 2:14) and a “deceitful” heart (Jeremiah 17:9), spirals into a self-love that twists and distorts human behavior into a litany of ungodliness that loves pleasure rather than God (2 Timothy 3:1-5).
Giving in to these “worldly” powers may grant us pleasures for “a season” (Hebrews 11:25), but will surely make us an “enemy of God” (James 4:4). May our Lord Jesus grant that we stay armed against such “wiles” (Ephesians 6:11), covered and protected with the “whole armor of God” (Ephesians 6:13-17)." HMM III