Isaiah called out oppression and the mistreatment of the poor. There is a definite theme of repentance that runs throughout the entire book of Isaiah. God is calling out the unrighteous, the oppressors, and those who mistreat their neighbors. In chapter 66, God is saying what Jesus often repeated–that sacrifices are an abomination to God if the hearts are corrupt.
God says, “I also will choose harsh treatment for them and bring their fears upon them, because when I called, no one answered, when I spoke, they did not listen; but they did what was evil in my eyes and chose that in which I did not delight” (Isaiah 66:4 ESV).
God reminds the people that He is the one who made the heavens and earth, and that the earth is his footstool. Our destiny is in God’s hands. He also reminds us that being humble, ashamed of our sins, and faithful to his word will get his eye: “All these things my hand has made, and so all these things came to be, declares the Lord. But this is the one to whom I will look: he who is humble and contrite in spirit and trembles at my word” (Isaiah 66:2).
Jesus Christ had the same message. He preached repentance and called people to humble themselves. When people are humble and contrite, God looks upon them. The Lord is gracious and merciful, slow to anger, and abounding in steadfast love!