This document contains a 13-part lesson on seeking lost sheep and calling others to follow Jesus. It discusses how to distinguish Jesus' voice, seeking those who are lost from different religious groups, building bridges between people and Jesus, sharing testimony, and calling others at the right time with God's help. It emphasizes that workers must not desist from their efforts to help the lost, but continue in tender, pitying love to give hope and strength to the discouraged. With faith in God, servants will be empowered to present His love and call people to accept the gospel.