18 Thou wilt surely wear away, both thou, and this people that is with thee: for this thing is too heavy for thee; thou art not able to perform it thyself alone.

19 Hearken now unto my voice, I will give thee counsel, and God shall be with thee: Be thou for the people to God-ward, that thou mayest bring the causes unto God:

20 And thou shalt teach them ordinances and laws, and shalt shew them the way wherein they must walk, and the work that they must do.

Jethro begins his advice in familiar territory. Moses had already been called to be God’s representative to the people, and also the people’s representative to God, and Jethro states that this should continue. Jethro further reaffirms Moses’s responsibility to lay down the laws and the lessons that the Lord provides. He is to teach the people generally of God’s commandments, of the correct conduct that they must perform, of their purpose from on High.

But up until now Jethro has not spoken to how the message from God, conveyed through Moses, would actually be disseminated through the people, nor how the trials of the people would be condensed upward to God through Moses. All that has been established so far is that the immaterial, unseen God will have His word made perceptible and perceivable through the conduct of Moses. Moses would turn spirit and truth into speech and writing, and only once that mortalizing process had occurred could it be distributed to all the people.