16 Go home and wash up. Clean up your act. Sweep your lives clean of your evildoings so I don't have to look at them any longer. Say no to wrong. 17 Learn to do good. Work for justice. Help the down-and-out. Stand up for the homeless. Go to bat for the defenseless. Let's Argue This Out 18 "Come. Sit down. Let's argue this out." This is God's Message: "If your sins are blood-red, they'll be snow-white. If they're red like crimson, they'll be like wool. 19 If you'll willingly obey, you'll feast like kings.
Matthew Henry's Commentary on Isaiah 1:16-19
Commentary on Isaiah 1:16-20
(Read Isaiah 1:16-20)
Not only feel sorrow for the sin committed, but break off the practice. We must be doing, not stand idle. We must be doing the good the Lord our God requires. It is plain that the sacrifices of the law could not atone, even for outward national crimes. But, blessed be God, there is a Fountain opened, in which sinners of every age and rank may be cleansed. Though our sins have been as scarlet and crimson, a deep dye, a double dye, first in the wool of original corruption, and afterwards in the many threads of actual transgression; though we have often dipped into sin, by many backslidings; yet pardoning mercy will take out the stain, Psalm 51:7. They should have all the happiness and comfort they could desire. Life and death, good and evil, are set before us. O Lord, incline all of us to live to thy glory.