I recently finished a series of teachings from the book of Isaiah. In the last four messages I preached through Isaiah 40, focusing on the incomparable greatness of God. (The third one, "Incomparable Craftsmanship" is probably the best of the bunch.)
Isaiah 40:1-8. Because God knows the future with certainty, His Word will stands firm and we can take comfort in it.
Isaiah 40:9-17. Behold our God who can hold the oceans in the hollow of His hand.
Isaiah 40:19-26. Behold the incomparable God who created the stars.
Isaiah 40:27-31. Incomparable endurance comes from the incomparable God.