Moses speaks to the Israelites as if they were one man, so the words "you" and "your" here are singular. (See: [[rc://en/ta/man/translate/figs-you]])
# you have passed ... set up ... I am commanding you
Moses is addressing the Israelites as a group, so the instances of "you" and the command "set up" are plural. (See: [[rc://en/ta/man/translate/figs-you]])
# plaster them with plaster
"spread plaster on them" or "make them so you can write on them." See how you translated this in [Deuteronomy 27:2](./01.md).
This refers to the chisels that would make the stones smoother, in order that they might fit together better. The full meaning of this statement can be made explicit. AT: "you will not shape the altar stones with iron tools" (See: [[rc://en/ta/man/translate/figs-explicit]])