Acts 10:28 He said to them: “You are well aware that it is against our law for a Jew to associate with or visit a Gentile. But God has shown me that I should not call anyone impure or unclean.
As long as Israel becomes merciful, then they'll live with the rest. Loving someone is not considering them to be an enemy, but slowly teaching (Eventhough it take your whole entire life) them why it is unlawful because they care for someone because of them not having someone to teach them. But Israel didn't wanted to be bother with them, but Moses was going to give up his life for them, because they needed time and a teacher. If it weren't for Moses' love that he has for them, God wouldn't had anything to consider. So the laws were made because someone has shown love for them. So if they become Christ-like, then they'll be save.
Genesis 18:23 Then Abraham approached him and said: “Will you sweep away the righteous with the wicked?
Exodus 32:32 But now, please forgive their sin—but if not, then blot me out of the book you have written.”
Deuteronomy 9:13 And the Lord said to me, “I have seen this people, and they are a stiff-necked people indeed! 14 Let me alone, so that I may destroy them and blot out their name from under heaven. And I will make you into a nation stronger and more numerous than they.”
15 So I turned and went down from the mountain while it was ablaze with fire. And the two tablets of the covenant were in my hands.