What does the Bible say about the Great Harvest?

In Matthew 9:36-38, Jesus observes the crowds and is moved with compassion because they are weary and helpless, likened to sheep without a shepherd. He instructs His disciples about the Great Harvest, emphasizing that the harvest is plentiful but the laborers are few. This highlights the need for Gospel workers and the urgency in bringing the message of salvation to those who are lost. The compassion of Christ reflects His deep understanding of the spiritual plight of humanity and the necessity for laborers to engage in evangelistic efforts.