@0 | Works | 455D24 | Asyms A list of the articles linking to this one without reciprocation. Article Type Subject Writing Statement Question Why does Shemos 20:22 introduce the building of the altar with אם? Shemos 20:22 [1] introduces the building of the altar with אם (“If you make an altar…”), implying that it’s an optional mitzvah. However, Rashi [2] cites R’ Ishmael who says that… @FxE782DB - updated 10 months ago