EZK 9:2

2 And, hinei, shishah anashim [(six men)] came from the derech of the Sha'ar HaElyon, which lieth toward the north, and every ish a keli mapatz [(slaughter weapon)] of his in his yad; and one ish among them was clothed with linen, with a keset hasofer [(writing case)] at his side; and they went in, and stood beside the Mizbe'ach HaNechoshet.