The lost belong to Christ because they are elected and purchased by Him, ensuring their eventual salvation.
In Matthew 18:12, the parable emphasizes that the lost sheep belongs to the shepherd, signifying Christ's ownership of His people. They are considered 'His sheep' because of divine election and the covenant established between the Father and the Son. This ownership guarantees that Christ will not rest until He saves each one of them. As it is stated in John 10:14-15, 'I am the good shepherd; and know my sheep, and am known of mine.' This assurance that they belong to Christ is a profound comfort, revealing that He will faithfully seek and save those who are His, reflecting the inextricable bond between the Savior and His sheep.
Scripture References:
Matthew 18:12, John 10:14-15
Commentary