The tabernacle was also called by this longer name because the ark with the law of God was placed inside it. See how you translated this in [Numbers 1:50](../01/50.md).
Here Yahweh speaks of not punishing the Israelites as his anger not coming upon them. The phrase "come upon" refers to his anger being applied to them. Alternate translation: "so that in my anger I do not punish the people of Israel" (See: [[rc://en/ta/man/jit/figs-metaphor]])