From the stand-point of the Good News, the Jews are God's enemies on your account; but from the stand-point of God's selection, they are dear to him on account of the Patriarchs.
However, as they set themselves against him and became abusive, Paul shook his clothes in protest and said to them: "Your blood be on your own heads. My conscience is clear. From this time forward I shall go to the Gentiles."
I ask then--'Was their stumbling to result in their fall?' Heaven forbid! On the contrary, through their falling away Salvation has reached the Gentiles, to stir the rivalry of Israel.
For if, when we were God's enemies, we were reconciled to him through the death of his Son, much more, now that we have become reconciled, shall we be saved by virtue of Christ's Life.
They are descended from the Patriarchs; and, as far as his human nature was concerned, from them came the Christ-he who is supreme over all things, God for ever blessed. Amen.