What does Revelation 7:12 mean?

This verse tells us what the members of the heavenly throng said as they worshiped God. They said "Amen!" and ascribed to God "Blessing and glory and wisdom and thanksgiving and honor and might … forever and ever!" This praise ended with another "Amen," meaning "so be it."

This praise acknowledges God's attributes. He is the source of every blessing, and no one can be truly happy without knowing Him. He is glorious, as Isaiah observed when he saw the Lord high and lifted up and seated upon His throne (Isaiah 6:1). Also, God is all-wise. He deserves everyone's gratitude and homage. All power and strength belong to Him forever and ever. In Isaiah 40, God asks, "To whom then will you compare me, that I should be like him?" (Isaiah 40:25). In answering His own question, God states, "The LORD is the everlasting God, the Creator of the ends of the earth. He does not faint or grow weary; his understanding is unsearchable. He gives power to the faint, and to him who has no might he increases strength" (Isaiah 40:28–29). We need this high view of God because it reflects who He truly is.