Note 38 at Mt 6:21: The reason for not laying up treasures on this earth is so that we will not have our hearts drawn away from the things of God (Mr 4:19). A key to success in the kingdom of God is singleness of purpose (Pr 23:7; Php 3:13, and 4:8). We don't have the capacity to do our best in two areas at the same time (Mt 6:24 and Jas 3:1-2). Therefore, if we will simply put God and His kingdom first in every area of our lives, He will add unto us all the wealth that we need (Mt 6:33). "The blessing of the LORD, it maketh rich, and he addeth no sorrow with it" (Pr 10:22). It's when we covet after money that we pierce ourselves through with many sorrows (1Ti 6:10).