What did Yisro mean when he said "Vetzivcha Elokim Veyachalto Amod"?
Rashi and Ramban: He was instructing Moshe again 1 to consult Hashem, because it is only if Hashem commands him to follow his (Yisro's) instructions that he will succeed.
Rashbam: If Moshe follows his advice, then, when Hashem issues him commands, he will be able to carry them out with the help of the officers.
Targum Yonasan: If Moshe follows his advice, he will be absolved from judging. Consequently, when Hashem issues him commands, he will be able to carry them out with a clear mind.
Moshav Zekenim: You will be able to stand when you want. You will not need to sit and judge the entire day.
To whom was Yisro referring when he concluded that "all these people will arrive at their place in peace"?
Rashi and Targum Yonasan: He was referring to Aharon, Nadav and Avihu and the seventy elders.
Ramban 1 and Rashbam: He was referring to the people who otherwise had to "stand from morning till evening" waiting for Moshe.
Rashbam: Now that the Din will be clarified via so many Batei-Dinim, the litigants will know for sure that the ruling was correct, and will stop quarreling. 2
Moshav Zekenim: Since there are many Batei Din available, people need not wait for judgment, which is called Shalom