16 Be washed, make yourselves clean; put away the evil of your doings from before my eyes; let there be an end of sinning; 17 Take pleasure in well-doing; let your ways be upright, keep down the cruel, give a right decision for the child who has no father, see to the cause of the widow. 18 Come now, and let us have an argument together, says the Lord: how may your sins which are red like blood be white as snow? how may their dark purple seem like wool? 19 If you will give ear to my word and do it, the good things of the land will be yours;
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.