Matthew 6:19-24 - The Sermon On The Mount: Treasure In Heaven
19 "Do not store your valuables [here] on earth, where moths can eat them and where rust can corrode them, and where burglars can break in and steal [them]. 20 But [rather] store up your valuables in heaven [i.e., by investing your life in spiritual things], where neither moths can eat nor rust corrode, nor burglars break in and steal, 21 for wherever [you store] your valuables, that is where your heart [i.e., your real concern] will be also.
22 Your eye is [like] a lamp to your body [i.e., your life]. If your eye sees things correctly, [then] your whole body [i.e., your entire life] will be illuminated [i.e., be directed into proper conduct]. 23 But if your eye sees things wrongly, [then] your whole body [i.e., your entire life] will be full of darkness [i.e., will not be lived properly]. If therefore, the light you have is [really] darkness [i.e., if you are not seeing life properly], that darkness will be very great [i.e., you cannot possibly live properly].
24 No person can serve two masters, for he will either hate the one and love the other, or else he will cling to the one and look down on the other. You cannot serve God and material things [at the same time].