1)
What is a Mochi'ach?
1.
Rashi: It is one who shows to everyone his liability and merits.
2.
Malbim: It is a judge who can clarify which of us is justified.
2)
What is the significance of putting his hand on both of us?
1.
Rashi: Fear of an officer would stop the strong from overpowering the weak.
2.
Malbim: It is to force us to comply with the verdict.
