On the twentieth day of the ninth month, the people gathered themselves together before the house of God. They sat huddled together in the midst of a driving rain storm, trembling because of the inclement weather and the distressing nature of that which had brought them together on this fearful occasion. Ezra stood before the throng and addressed them with words which pierced to the depths of their hearts: “You have been unfaithful; you have married foreign women, adding to Israel’s guilt. Now make confession to the Lord, the God of your fathers, and do His will. Separate yourselves from the peoples around you and from your foreign wives” [Ezra 10:10-11].
Sorry, but that’s from the old testament and this is the from the New Testament, and so it trumps anything from the OT.
17:26
And hath made of one blood all nations of men for to dwell on all the face of the earth, and hath determined the times before appointed, and the bounds of their habitation;
Also, Jesus specifically says that we must be kind and interactive with people that we don’t know and aren’t of our kind.
Luke 10: 25-37
25 Just then a lawyer stood up to test Jesus. him’);" onmouseout=“return nd();” href=“javascript:void(0);”* ‘Teacher,’ he said, ‘what must I do to inherit eternal life?’ 26He said to him, ‘What is written in the law? What do you read there?’ 27He answered, ‘You shall love the Lord your God with all your heart, and with all your soul, and with all your strength, and with all your mind; and your neighbour as yourself.’ 28And he said to him, ‘You have given the right answer; do this, and you will live.’
29 But wanting to justify himself, he asked Jesus, ‘And who is my neighbour?’ 30Jesus replied, ‘A man was going down from Jerusalem to Jericho, and fell into the hands of robbers, who stripped him, beat him, and went away, leaving him half dead. 31Now by chance a priest was going down that road; and when he saw him, he passed by on the other side. 32So likewise a Levite, when he came to the place and saw him, passed by on the other side. 33But a Samaritan while travelling came near him; and when he saw him, he was moved with pity. 34He went to him and bandaged his wounds, having poured oil and wine on them. Then he put him on his own animal, brought him to an inn, and took care of him. 35The next day he took out two denarii, denarius was the usual day’s wage for a labourer’);" gave them to the innkeeper, and said, “Take care of him; and when I come back, I will repay you whatever more you spend.†36Which of these three, do you think, was a neighbour to the man who fell into the hands of the robbers?’ 37He said, ‘The one who showed him mercy.’ Jesus said to him, ‘Go and do likewise.’
Give up yet?