Deuteronomy 6:4 English Standard Version (ESV)

⁴ “Hear, O Israel: The Lord our God, the Lord is one.^[a]

Romans 2:17-25 English Standard Version (ESV)

¹⁷ But if you call yourself a Jew and rely on the law and boast in God ¹⁸ and know his will and approve what is excellent, because you are instructed from the law; ¹⁹ and if you are sure that you yourself are a guide to the blind, a light to those who are in darkness, ²⁰ an instructor of the foolish, a teacher of children, having in the law the embodiment of knowledge and truth— ²¹ you then who teach others, do you not teach yourself? While you preach against stealing, do you steal? ²² You who say that one must not commit adultery, do you commit adultery? You who abhor idols, do you rob temples? ²³ You who boast in the law dishonor God by breaking the law. ²⁴ For, as it is written, “The name of God is blasphemed among the Gentiles because of you.”

²⁵ For circumcision indeed is of value if you obey the law, but if you break the law, your circumcision becomes uncircumcision.