Who is considered 'Israel' in the context of salvation?

'Israel' in the context of salvation is interpreted not as the national entity but as the elect of God, the true Israelite. This understanding is significant as seen in Acts 13:23, where Jesus is called a Savior for Israel. This designation points not to a geographical or ethnic identity but to the spiritual lineage of those whom God has chosen for salvation. Christ Himself mentioned His mission to 'the lost sheep of the house of Israel', affording clarity that His redemptive work is centered on the elect, affirming that all who believe—Jew or Gentile—are part of this true Israel.