the Berasit Hebrew Dictionary

צדקיהו

Literally “Ihoh the Pure”

This was the name of a high priest during the time of Solomon's Temple sometime around 700 BC¹⁾²⁾

This was also the name of the last King of Judah, who reigned for 11 years, 597–586 BC, before the Babylonian sack of Jerusalem and subsequent captivity of the hyberi under Nebuchadnezzar II of Babylon.

After the siege of Jerusalem in 597 BC, Nebuchadnezzar II deposed king Jeconiah and installed his uncle Mattanyahu instead, changing his name to Zedekiah (2 Kings 24:17). The prophet Jeremiah was his counselor, yet he did not heed the prophet and his epitaph is “he did evil in the sight of the Lord” (2 Kings 24:19–20; Jeremiah 52:2–3).

An alternate interpretation is to take the name literally, as Ihoh the Pure himself. Under this interpretation, “both Zedekiahs” might possible be the same entity since the span of several hundred years is not problematic for a member of the alehim. This also bears a fascinating parallel with Melchizedek, the “Priest-King” who appears as early as Genesis 14:18. assume this is feasible - what does this do to the context?

LexID 6667