Molanus argues that artworks of stone, metal and the like are considered statues and can keep the memory of something alive, like Lot’s wife, who was turned into a pillar of salt and can thus be sacred objects.
“Concerning sacred images and those that can be compared to them, we must not pass over in silence the statue of Lot’s wife, or the siege of Jerusalem reproduced on a tile by Ezekiel, or finally, the image of sin that Zechariah saw. We will stop to study them. The wife of Lot turned around to see behind her Sodom and Gomorrah was changed into a statue of salt. An image made of wood, stone, ivory, metal or similar materials is usually called a statue. To keep the memory of the punishment of Lot’s wife who looked back, the Lord turned her into a statue of salt, a very hard and difficult material to destroy. Pliny mentions that salt is cut with great difficulty using metal tools, like quarrymen.”
“Sed dum de imaginibus sacris et quae ad eas referri possunt, agitur, non oportet selentio praeterire statuam uxoris Loth, aut obsidionem Ierusalem ab Ezechiele in latere descriptam, aut denique peccati imaginem a Zacharia visam. Paululum igitur ista consideremus. Uxos Loth respiciens post se ad Sodomam et Gomorrham versa est in statuam salis. Statua dici solet imago favricata ex ligno, lapide, ebore, metallo, aut simili materia. Dominus igitur ut memores essemus poenae uxoris Loth retrospicienstis, fecit ex ea statuam salis ex durissima materia, ut non facile deleri posset eius memoria. Meminit autem Plinius salis qui lapicidinarum modo vix etiam ferro caeditur.”
Molanus 1996, 268.