Which prophet described the Holy Lord of Hosts as the Holy One?

• A. Isaiah
• B. Jeremiah
• C. Ezekiel
• D. Daniel

Answer: (A)

The main idea here is recognizing how God’s holiness is expressed together with His sovereignty. The phrase Holy One, especially in the form Holy One of Israel, is a distinctive way the prophet Isaiah speaks about God. Isaiah repeatedly describes God as the Holy One of Israel, underscoring both His moral purity and His special relationship with His people, while also calling Him the LORD of hosts—one who rules over heavenly armies. This pairing shows up in Isaiah’s poetry and prophecy, highlighting that God is uniquely holy and powerfully sovereign.

A clear example is Isaiah’s usage of the Holy One of Israel to address or rebuke the people, reminding them of God’s holy nature and faithfulness. Because Isaiah is the prophet best known for this phrasing, the description in the question points to him. Other prophets affirm God’s holiness as well, but the exact expression linking the Holy One with the Lord of hosts is most characteristic of Isaiah.