Isaiah 50:2-3

The proof of God’s strength is His control over nature. The nature miracles of Jesus proved His deity (cf. Matthew 8:27; Matthew 14:33). In spite of the vast amount of water in the sea, God can dry up the sea. Even though the sky above is apparently limitless, He can make it dark. The images here recall the Creation and the Exodus (cf. Exodus 15:16; Deuteronomy 26:8, Psalms 77:15), but the point is that God has the power to change anything as He chooses.