What does the Bible say about losing our life for the Gospel?

Matthew 14 illustrates the necessity of sacrificing our lives for the sake of the Gospel, as seen in the execution of John the Baptist. Jesus Himself instructs His followers to count the cost of discipleship, indicating that following Him may require the ultimate sacrifice. Jesus spoke of the importance of surrendering all to Him, comparable to the man who sells everything to purchase the field with the treasure. This emphasizes that true salvation costs us everything as we abandon our earthly attachments to follow Christ faithfully.