Here are scriptures showing Paul's identities:
Identifying as a Jew
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Acts 21:39 - "I am a Jew, from Tarsus in Cilicia, a citizen of no ordinary city..."
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Acts 22:3 - "...I am a Jew, born in Tarsus of Cilicia..."
Identifying as a Spiritual Jew
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Romans 2:28-29 - "For he is not a Jew who is one outwardly...but he is a Jew who is one inwardly."
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Philippians 3:3 - "For we are the circumcision, who worship God in the Spirit..."
Identifying as an Israelite
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Romans 11:1 - "I say then, Hath God cast away his people? God forbid. For I also am an Israelite, of the seed of Abraham, of the tribe of Benjamin."
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2 Corinthians 11:22 - "Are they Hebrews? so am I. Are they Israelites? so am I."
Paul's identities:
- Biological: Benjaminite Israelite
- Cultural: Jew
- Spiritual: Jew inwardly, part of spiritual Israel