פירוש על במדבר 11:14

לא אוכל אנכי לבד, You will have to provide me with assistants to enable me to carry this burden.

לא אוכל אנכי לבדי לשאת, I cannot carry (this burden) all by myself." Here Moses revealed his own wishes in the matter. He told G'd that his refusal to carry the load all by himself was not due to lack of good will to carry out G'd's assignment but to his conviction that it was beyond his ability to do so.

לא אוכל לבדי שאת, “I cannot carry this burden all by myself.” Nachmanides writes that Moses did not request that the elders become his assistants in his supplying meat for the people, for where would they take it from? Moreover, he was quite aware that even if a large number of providers would be appointed, whenever they would find reason to complain these complaints would continue to be addressed to him, seeing that it had been he who had taken them out of Egypt, and the source of all their complaints were always traced to that event. What Moses hoped to accomplish by having the elders appointed was that if the people had a number of leaders, by the time the complaints would be transmitted to him if they proved beyond the competence of the elders to deal with, the people’s anger and fury would have at least partially spent itself seeing that the elders would have tried to blunt their anger and frustration. It is also possible that Moses thought that once the people found out that the elders possessed holy spirit and were able to prophesy, they would show loyalty to these prophets and not gang up on Moses as they had been in the habit of doing. They would therefore demand from these divinely inspired elders to satisfy their various cravings.