Reply To: First mention of glass in Tanach? Home › Forums › Bais Medrash › First mention of glass in Tanach? › Reply To: First mention of glass in Tanach? September 7, 2011 6:12 am at 6:12 am #942429 Ragachovers AssistantMember HaLeiVi is correct. It’s found only once in Tanac”h in Iyov 28:17. I used the BAR-ILAN Torah Data Base.