What does the Bible say about the arm of the Lord?

In Isaiah 53:1, the phrase 'the arm of the Lord' symbolizes God's power and intervention in salvation. The rhetorical question, 'to whom is the arm of the Lord revealed?', underscores that true belief in God's message comes from the divine revelation and empowerment of the Holy Spirit. The arm of the Lord is ultimately a person—Jesus Christ—who embodies God's saving grace and righteousness. As the perfect God-man, He fulfills all the requirements for salvation, making the power of God evident to those who believe.