RobH_en_tn/deu/27/02.md

command you today ... you will pass

Moses is speaking to the Israelites as a group, so both instances of the word "you" are plural. (See: rc://en/ta/man/translate/figs-you)

plaster them with plaster

Plaster is usually a mixture of lime, sand, and water that is spread on something. It dries to form a hard, smooth surface on which a person can write. Alternate translation: "spread plaster on them" or "make them so you can write on them" (See: rc://en/ta/man/translate/figs-explicit)