Ezekiel 9:2-3
9:2 Next, I noticed six men coming from the direction of the upper gate which faces north, each with his war club in his hand. Among them was a man dressed in linen with a writing kit at his side. They came and stood beside the bronze altar.
9:3 Then the glory of the God of Israel went up from the cherub where it had rested to the threshold of the temple. He called to the man dressed in linen who had the writing kit at his side.