God Himself says, “Come now, let us argue it out.” He knows that we will continue to have difficulty accepting that salvation is a free gift of God to those who believe. He knows that some of us will argue with Him and with each other that there must be something else to it. We must do something! No one gives away such a gift, especially not the Someone who hates sin so very much.
But God says, “Let’s settle this matter!” He argues quite eloquently, “Though your sins are scarlet, they may become white as snow; though they are dyed crimson, they may yet be like wool.”
And yes, He does say, “Obey with a will.” And He does warn, “Refuse and rebel” and you won’t “eat the best that earth yields.” (Isaiah 1: 18-19) There are consequences to disobedience! Every true Christian knows this! Our Lord says, “Once again, I will act against you to refine away your base metal as with potash and purge all your impurities.” (Isaiah 1: 25)
God calls us to “walk in the Light of the Lord.” (Isaiah 2: 5) God warns again, “Mankind shall be brought low, all men shall be humbled; and how can they raise themselves?… Man’s proud eyes shall be humbled, the loftiness of man brought low, and the Lord alone shall be exalted on that day.” (Isaiah 2: 9, 10-11)
On that day, who will be exalted? Not mankind for all his efforts to be good, do right, abandon evil. No, the only one who will be exalted on that day will be the Lord Jesus Christ, who died to save mankind. Amen. To God be the glory.