Isaiah 1:18

Come now. God here invites men to meet with Him for a free and frank discussion of their problems. He is not an inconsiderate judge or an arbitrary tyrant, but a kindly father and friend. Man’s interests are His interests, and man’s good is His good.

All His admonitions are given for the good of man. This He desires man to understand and believe. It is hardly possible to conceive of a more appealing exhibition of the wonderful love and goodness of God than is found in this gracious invitation to “reason” with the Lord of heaven and earth. God is reasonable, and desires men to realize that it is to their advantage to forsake sin and to walk in the ways of righteousness. Man’s reasoning powers were given him to use, and he can make no better use of them than to discover the benefits of obedience and the woes of transgression.

Though your sins. In this promise the worst of sinners may find comfort and hope. God here assures us that however guilty we may have been in the past, however deep dyed our sin may have been, it is possible to be restored to purity and holiness. This promise deals not only with the results of sin but with sin itself. It can be eradicated and completely put out of the life. With the help of God the sinner may secure complete mastery over his every besetment (see on 1 John 1:9).