How do we know we are truly Christ's sheep?

In John 10:27-28, Jesus provides a clear mark of His sheep: they hear His voice, follow Him, and are given eternal life. The relationship between Christ and His sheep is intimate; it reflects a knowing that goes beyond mere recognition. It suggests a transformative relationship where believers, by faith, recognize the Savior's voice in Scripture and His Spirit. This discernment leads to following His teachings and commands. Additionally, one can examine their life for the fruit of the Spirit and their desire for communion with God, as these are evidences of being one of His lambs.