There is no other nation that YHVH has chosen but one only and they are not just Jews but Hebrews-Israel. They-Israel-are HIS people; if any of the gentiles nations want to become HIS people all they have to do is OBEY HIM. If you do HE will become your Elohyim which by the way means-Creator-and it is a plural form of the Hebrew word EL but it refers to the plurality of HIS creation, HE created more than just one thing. EL is singular Elohyim is the plural form of EL. There is nothing that Christians can claim as their own and neither can the Jews claim HIM as their only. HE will not refuse any one that comes to HIM, but you must do it the way HE says it. You read that Bible and if HE is talking to you than do what HE says; In Isaiah chapter 56 read about the strangers and eunuch's and what anyone can do to become better than sons and daughters; keep HIS Sabbath and do justice; take hold of HIS covenant and do what HE says to do and you'll become HIS son or daughter and you know what...you don't even have to be a Jew or an Israelite remember Ruth the Moabite? She accepted the people and their Creator. One other thing...the one that people call Jesus...please stop calling HIM Jesus; if you have a look in the Strong Concordance # 2424 from the Greek will send you back to the Hebrew # 3091; you'll see that HIS name is not Jesus but its Y'hoshua which is the Hebrew name that was given by the messenger of YHVH to Miriyam before HE was conceived.