The instruction of Matthew 6:22
and 23 is designed to guide kingdom citizens in the path of righteousness. It
follows in the context of laying up of treasures (vv. 19–22). What one believes
determines what one treasures: “For as he thinks in his heart, so is he”
(Proverbs 23:7, NKJV).
The eye is an amazing
instrument, providing sight to the body. Along with hearing and touch, eyes allow
a person to live outside his own mind. Here, Jesus likens the eye to a lamp (a light source). In the physical realm, the eye is more like a window
through which light passes. Thus, we conclude that Jesus is using the eye metaphorically
as the means of understanding spiritual truth. If one’s spiritual eye functions
properly—is healthy or single—correctly fulfilling
its office, the body is “full of
light,” spiritual truth. As the
eye allows the body to maneuver properly in its environment, so the single eye
provides light to one’s spiritual path. However, if the
eye is bad (vision impaired), the body’s freedom of movement is hampered.
Again, single the eye or clear vision is
used here symbolically of the ability to maneuver wisely in the spiritual realm,
guided and directed by truth in the mind. The Bible calls this wisdom: “I
have taught you the way of wisdom; I have led
you in the paths of uprightness. When you walk, your step will not be hampered,
and if you run, you will not stumble” (Proverbs 4:11, 12). A single eye has
but one objective, the pleasing and glorifying of God in the way of the
righteousness. “My son, do not lose sight of these—keep sound wisdom and
discretion. ... Then you will walk on your way securely, and your foot will not
stumble” (Proverbs
3:21, 23).
The word single has the
idea of simplicity, as used by Paul in 2 Corinthians: “For our boast is
this, the testimony of our conscience, that we behaved in the world with
simplicity [a variation of the term in Matthew 6:22] and godly
sincerity, not by earthly wisdom but by the grace of God” (1:12). We need a
single eye—clear vision—of what God regards as most valuable, the heavenly treasure.
The heavenly treasure is “the surpassing worth of knowing Christ” (Philippians
3:8). Clear vision also shows the way forward to obtain the prize: “That I
may gain Christ and be found in him” (Philippians 3:9). The treasure is
Christ “in whom are hidden all the treasures of wisdom and knowledge”
(Colossians 2:3).
The single eye with understanding
guided by heavenly wisdom is important to discern what is essential between the
things that differ. So much is thrown at us, and it is a constant battle to
distinguish what is good from what is bad.
More importantly, the greater discernment is between what is good and
what is best—the will of God. As Paul prayed for the Philippian church, “It
is my prayer that your love may abound more and more, with knowledge and all
discernment, so that you may approve what is excellent, and so be pure and
blameless for the day of Christ, filled with the fruit of righteousness that
comes through Jesus Christ, to the glory and praise of God” (Philippians 1:9–11).