There is no hermeneutical fault in how I am understanding the passage.
There is a HUGE "hermeneutical fault in how you're understanding the passage".
Christ came as Prophet, Priest, and King. As Prophet to Israel in her last days He had nothing to say to non-Jews:
24 But he answered and said,
I was not sent but unto the lost sheep of the house of Israel. Mt 15
Gill:
"...as a priest, or as a Saviour and Redeemer, he was sent to make satisfaction and atonement for the sins of all God's elect, and to obtain eternal redemption and salvation for all of them, whether Jews or Gentiles; but
as a prophet, in the discharge of his own personal ministry, he was sent by his Father only to the Jews; he was the "minister of the circumcision", Romans 15:8..."
Paul:
8 For I say that
Christ hath been made a minister of the circumcision for the truth of God, that he might confirm the promises
given unto the fathers, Ro 15
If your intent is to preach a message of 'hell fire damnation' to the members of the BB, in lieu of referencing The Prophet's warnings to Israel in her last days, you should go to the letters to The Church. A good passage for you here would be:
7 Be not deceived; God is not mocked: for
whatsoever a man soweth, that shall he also reap.
8 For
he that soweth unto his own flesh shall of the flesh reap corruption; but he that soweth unto the Spirit shall of the Spirit reap eternal life. Gal 6
To be 'hermeneutically sound' with the gospels you should take pains to screen all of Christ's words through His declaration:
I was not sent but unto the lost sheep of the house of Israel.