Yechezkel 9:3-5

Orthodox Jewish Bible

³ And the Kavod Elohei Yisroel was gone up from the Keruv (Cherub), whereupon it was, to the miftan HaBeis [HaMikdash] (the Threshold of the Beis HaMikdash). And He called to the ish clothed with linen, which had the keset hasofer at his side;

⁴ And Hashem said unto him, Go through the midst of the Ir, through the midst of Yerushalayim, and put a TAV upon the mitzekhot (foreheads) of the anashim that grieve and lament for kol hato’evot that are being done in the midst thereof.

⁵ And to the others He said in mine hearing, Go ye through the Ir after him [i.e., the man with the scribal kit], and strike down; let not your eye have pity, and do not spare;