Isaiah 30:3 states Pharaoh's strength will be shame and confusion—directly preceding and matching the reproach in 30:5.

Isaiah 30:16 continues the rebuke, criticizing trust in horses for flight instead of God—same theme of misplaced reliance.

Isaiah 20:5 explicitly says those who hoped in Egypt and Ethiopia will be ashamed—direct parallel to the shame of vain trust.

Isaiah 20:6 laments that the expected help from Egypt against Assyria fails—confirming the shameful outcome in 30:5.

Isaiah 31:1-3 pronounces woe on those who go down to Egypt for help, stressing that Egyptians are men, not God—same condemnation.

Jeremiah 2:36 explicitly says Israel will be ashamed of Egypt as they were of Assyria—identical theme of disappointed trust.