Ezekiel was a Levite and destined to be a priest in the temple of the Lord.  He had been training for his work but at the age of 25, he was taken into captivity into Babylon by King Nebuchadnezzar.  A Levite would train for his work until the age of 30, then at that age, they would start their priestly duties.  It was five years into the captivity and at the age of thirty that God would begin to give Ezekiel visions and prophetic words for Israel. 

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