Jaazaniah or Jezaniah is a personal name that appears in the Bible for several different individuals and has been found on an onyx seal. Four distinct individuals named Jaazaniah are mentioned in the Bible:
Jaazaniah the son of Hoshaiah was an officer in the army of the kingdom of Judah. He joined the Babylonian-appointed ruler Gedaliah at Mizpah after the exile of Judah (2 Kings 25:23 and Jeremiah 40:8). He was also called Jezaniah.
Jaazaniah, son of a man called Jeremiah (not the prophet), and grandson of Habazziniah, was the leader of the clan of the Rechabites at the time of the prophet Jeremiah. The prophet Jeremiah brings Jaazaniah and other members of his clan to the Temple, where they refuse to drink wine offered to them, in commemoration of their ancestor, Jonadab son of Rechab who had forbidden his followers to drink wine. Jeremiah commends them to the people and shows them as an example of people who know how to keep their principles. (Jeremiah 35:3).
Jaazaniah son of Shaphan was one of the 70 elders of Israel whom the prophet Ezekiel sees in a vision committing idolatry because they believed that God had abandoned the world and was no longer watching them (Ezekiel 8:11).
Jaazaniah son of Azzur was a leader of Israel and a false prophet whom the prophet Ezekiel sees in a vision of iniquitous elders standing at a gate of the Temple, falsely telling the people that Jerusalem will not be destroyed (Ezekiel 11:1).