In this sermon, the speaker emphasizes the importance of recognizing the time of grace that God offers to each individual. He uses the analogy of a shepherd and his sheep to illustrate how God knows and cares for each person individually. The speaker also highlights Jesus' compassion for the lost and his willingness to leave heaven and give his life for them. The sermon also mentions the feeding of the multitude, where Jesus demonstrates his love and provision for the people. Overall, the message emphasizes the need for individuals to accept God's invitation and not live their lives like lost sheep without a shepherd.