Isaiah 7:4 commands 'do not fear' regarding enemy threats—a parallel reassurance to a king, echoing the same prophetic pattern.

Isaiah 10:24 directly parallels this command: 'Do not be afraid of the Assyrian.' Same wording and context.

Isaiah 10:25 adds that God's indignation will cease and turn to Assyria's destruction — the reason for not fearing.

Isaiah 51:12 explicitly asks why fear mortal man — directly addressing the fear of the Assyrian king's words.

Isaiah 51:13 rebukes forgetting God and fearing the oppressor — the exact sin Hezekiah is warned against.

In Isaiah 10:16, God promises judgment on Assyria's 'fat ones' — the same nation that now blasphemes, showing God will act.

Exodus 14:13 has Moses telling Israel 'Do not be afraid, see the salvation of the Lord' — a typological deliverance echoed here.

In Joshua 11:6, God gives the same 'Be not afraid' command before battle, showing His consistent pattern of reassuring leaders against overwhelming enemies.

2 Kings 19:5-7 gives the same divine response to Hezekiah: do not fear, God will act—a direct parallel account.

In 2 Chronicles 20:15-20, Jehoshaphat is told 'Be not afraid' because the battle is God's — a direct parallel to the reassurance given to Hezekiah.

In Mark 5:36, Jesus tells Jairus 'Be not afraid, only believe' — a direct NT counterpart to God's command through Isaiah.

In 2 Kings 19:6, the same message to Hezekiah is recorded verbatim, confirming the historical account from another source.

In Mark 4:40, Jesus rebukes His disciples' fear during the storm, echoing the same call to trust God rather than fear circumstances.