Because God is holy, acceptance with Him on the ground of creature doings is utterly impossible. A fallen creature could sooner create a world than produce that which would meet the approval of infinite Purity. Can darkness dwell with Light? Can the Immaculate One take pleasure in “filthy rags” (Isa. 64:6)? The best that sinful man brings forth is defiled. A corrupt tree cannot bear good fruit. God would deny Himself, vilify His perfections, were He to account as righteous and holy that which is not so in itself; and nothing is so which has the least stain upon it contrary to the nature of God. But blessed be His name, that which His holiness demanded His grace has provided in Christ Jesus our Lord. Every poor sinner who has fled to Him for refuge stands “accepted in the Beloved” (Eph. 1:6). Hallelujah!
~A.W. Pink~
The Attributes of God (Swengel, PA; Reiner Publications) p.47. The Holiness of God
The Old Guys 
Thanks for sharing.