“Man is never sufficiently touched and affected by the awareness of his lowly state until he has compared himself with God’s majesty.
Today most people in the world comfortably assume the Lord grades on a curve. Arrogantly man parades about, confident God will disregard our “mistakes.” But Isaiah, like the other biblical authors, knew that to violate even one commandment was to be guilty of them all (James 2:10), and so he fell prostrate before the splendor of God’s holiness. We too would respond this way if we saw what Isaiah saw.
And I said: “Woe is me! For I am lost; for I am a man of unclean lips, and I dwell in the midst of a people of unclean lips; for my eyes have seen the King, the LORD of hosts! ( Isaiah 6:5)
If we ask Isaiah, ‘Whose glory did you see in your vision of the temple?’ he would reply, ‘Yahweh’s.’ But if we ask the same question of John, ‘Whose glory did Isaiah see?’ he would give the same answer—only in its fullness, ‘Jesus’ (John 12:36-43). The most holy God took on human flesh to give us full pardon and cleansing. Let us never miss the wonder that Christ Jesus is the incarnate Creator of all.”
-Quotes from RC Sproul, Calvin, and James White