Deuteronomy 1:9
I also said to you at that time, "I am no longer able to sustain you by myself.
Exodus 18:18
You will surely wear out, both you and these people who are with you, for this is too heavy a burden for you; you are not able to do it by yourself.
Numbers 11:11-14
And Moses said to the Lord, "Why have you afflicted your servant? Why have I not found favor in your sight, that you lay the burden of this entire people on me?
Numbers 11:17
Then I will come down and speak with you there, and I will take part of the spirit that is on you, and will put it on them, and they will bear some of the burden of the people with you, so that you do not bear it all by yourself.