Lk 10:1-2, Mt 9:37-38
Moses led the Israelites alone. But he was very troubled by the complaints of the people of Israel. At this time, God told Moses to gather 70 elders to rule the people of Israel together. (Numbers 11:14,16,25)
Numbers 11:14 I am not able to bear all this people alone, because it is too heavy for me. 16 And the Lord said unto Moses, Gather unto me seventy men of the elders of Israel, whom thou knowest to be the elders of the people, and officers over them; and bring them unto the tabernacle of the congregation, that they may stand there with thee. 25 And the Lord came down in a cloud, and spake unto him, and took of the spirit that was upon him, and gave it unto the seventy elders: and it came to pass, that, when the spirit rested upon them, they prophesied, and did not cease.
Jesus also told us to ask God to send His disciples first to save people. (Luke 10:1-2, Matthew 9:37-38)
Luke 10:1 After these things the Lord appointed other seventy also, and sent them two and two before his face into every city and place, whither he himself would come. 2 Therefore said he unto them, The harvest truly is great, but the labourers are few: pray ye therefore the Lord of the harvest, that he would send forth labourers into his harvest.
Matthew 9:37 Then saith he unto his disciples, The harvest truly is plenteous, but the labourers are few; 38 Pray ye therefore the Lord of the harvest, that he will send forth labourers into his harvest.