Exodus 18:20

18You will surely wear away, both you, and this people that is with you; for the thing is too heavy for you. You are not able to perform it yourself alone.

19Listen now to my voice. I will give you counsel, and God be with you. You represent the people before God, and bring the causes to God.

20You shall teach them the statutes and the laws, and shall show them the way in which they must walk, and the work that they must do.

21Moreover you shall provide out of all the people able men which fear God: men of truth, hating unjust gain; and place such over them, to be rulers of thousands, rulers of hundreds, rulers of fifties, and rulers of tens.

22Let them judge the people at all times. It shall be that every great matter they shall bring to you, but every small matter they shall judge themselves. So shall it be easier for you, and they shall share the load with you.