How can I bear by myself the weight and burden of you and your strife?
Moses here reminds them of the happy constitution of their government, which was such as might make them all safe and easy if it was not their own fault. When good laws were given them good men were entrusted with the execution of them, which, as it was an instance of God's goodness to them, so it was of the care of Moses concerning them...
Commenting on Deuteronomy 1:9-18
How can I myself alone bear your cumbrance, and your burden, and your strife? His meaning is, that he could not hear and try all their causes, and determine all their law suits, and decide the strifes and controversies which arose between them; it was too heavy for him, and brought too much trouble and incumbrance upon him.
How can I myself alone bear your cumbrance, and your burden, and your strife? (i) Signifying how great a burden it is, to govern the people.