It might seem strange to call a brutal conqueror 'my servant.' Yet, God’s Word clearly states Nebuchadnezzar is exactly that.
The Instrument of Judgment
God is sovereign over all nations and rulers, even those who don’t acknowledge Him. He uses them as instruments to carry out His purposes and judgments.
Nebuchadnezzar, known for his military might and expansion, is here called 'my servant.' This doesn't mean Nebuchadnezzar had a personal relationship with God or willingly obeyed Him. Instead, God is declaring that He ordained Nebuchadnezzar to be the one who would bring judgment upon rebellious people and nations, including the unfaithful people of Judah who had fled to Egypt.
Think of it like a hammer. A hammer isn't a moral being; it simply performs the function given to it by the one who wields it. Nebuchadnezzar was that hammer for God’s judgment.