tn The imperfect tense here should have the nuance of instruction or injunction: “you are to speak.” The subject is singular (Moses) and made emphatic by the presence of the personal pronoun “you.”

tn The phrase translated “everything I command you” is a noun clause serving as the direct object of the verb “speak.” The verb in the clause (אֲצַוֶּךָ, ’atsavvekha) is the Piel imperfect. It could be classified as a future: “everything that I will command you.” A nuance of progressive imperfect also fits well: “everything that I am commanding you.”

sn The distinct emphasis is important. Aaron will speak to the people and Pharaoh what Moses tells him, and Moses will speak to Aaron what God commands him. The use of “command” keeps everything in perspective for Moses’ position.

tn The form is וְשִׁלַּח (véshillakh), a Piel perfect with vav (ו) consecutive. Following the imperfects of injunction or instruction, this verb continues the sequence. It could be taken as equal to an imperfect expressing future (“and he will release”) or subordinate to express purpose (“to release” = “in order that he may release”).