How do we know God is in control according to Isaiah?

In Isaiah 6, particularly verse 1, Isaiah sees the Lord high and lifted up, which signifies God's supreme authority over all earthly rulers. The vision serves as a powerful reminder that even when earthly kings like Uzziah fail or pass away, God remains in sovereign control. Isaiah's cry of 'woe is me' (Isaiah 6:5) expresses his recognition of his own unworthiness, emphasizing that God is the only true King and that He rules over all. Thus, we see that God's sovereignty is foundational to our understanding of His character and His plans for humanity.