And Jesus went throughout all the cities and villages, teaching in their synagogues and proclaiming the gospel of the kingdom and healing every disease and every affliction. ³⁶ When he saw the crowds, he had compassion for them, because they were harassed and helpless, like sheep without a shepherd. ³⁷ Then he said to his disciples, “The harvest is plentiful, but the laborers are few; ³⁸ therefore pray earnestly to the Lord of the harvest to send out laborers into his harvest.” 

(Matthew 9:35-38 -- ESV)