Luke 10:1-3

1Now after these things the Lord appointed seventy others also, and sent them two and two before his face into every city and place where he himself was about to come.

2And he said to them, The harvest indeed [is] great, but the workmen few; supplicate therefore the Lord of the harvest that he may send out workmen into his harvest.

3Go: behold I send you forth as lambs in the midst of wolves.