As Pastor Ricky continues his teaching on the Parable of the Sower, he will be emphasizing the importance for believers to scatter seeds and patiently wait for the harvest. You're just commanded to preach the gospel. You aren't responsible for the harvest, that's the Lord's job. Don't try and examine the heart of unbelievers just do your duty to preach the gospel. Don't underestimate the power of God's Word when you speak it into someone’s life. The Word of God will never return void.