What We Believe
The lost sheep of Israel are the Jewish people.
In the Brit Chadasha, Mark chapter 12, one of the Torah-teachers came up and asked Yeshua, “Which is the most important mitzvah of them all?” Yeshua answered, “The most important is, ‘Sh’ma Yisra’el, Adonai Eloheinu, Adonai echad (a unity of one) [Hear, O Isra’el, the Lord our God, the Lord is one], and you are to love Adonai your God with all your heart, with all your soul, with all your understanding and with all your strength.’ The second is this: ‘You are to love your neighbor as yourself.’ There is no other mitzvah greater than these.” We agree.
In Genesis 1:26-27 Moses writes, "God said: 'Let us make man in our image, after our likeness; and let them have dominion over the fish of the sea, and over the fowl of the air, and over the cattle, and over all the earth, and over every creeping thing that creeps upon the earth. And God created man in His own image, in the image of God (Elohim a plural) created male and female.
In Genesis 2:24 - Moses writes that "a man leaves his father and mother and is united to his wife, and they become one flesh." The "one" there is a plural one. The word "echad (unity of one)."
In Daniel 7, It says " I saw in the night visions, and behold, with the clouds of heaven, there came one like a son of man, and he came to the Ancient of Days and was presented before him. And to him was given dominion and glory and a kingdom, that all peoples, nations, and languages should serve him; his dominion is an everlasting dominion, which shall not pass away, and his kingdom one that shall not be destroyed. We believe the Ancient of Days is Yud-Hey-Vav-Hey and the son of man is Yeshua his son.
In Yohanan 14:26, it says, But the Counselor, the Ruach HaKodesh, whom the Father will send in my name, will teach you everything; that is, he will remind you of everything I have said to you. The Ruach is a separate entity from the Father, Yud-Hey-Vav-Hey and his son Yeshua.
In Colosians 2:9, Sha'ul writing about the Mashiach says, "In him, bodily, lives the fullness of all that Elohim is."
WHO IS JEWISH?
Are you asking Hitler, a Muslim terrorist, an orthodox rabbi or us?
Some orthodox Jews wouldn't consider reform Jews as Jewish.
The word "Jew" comes from the tribe of Judah.
The likelihood of 100% of the people, who consider themselves Jewish, having DNA that is 100% from the tribe of Judah is not probable.
I know people who were "born and raised" by two Jewish parents and they pay no attention to the Torah dietary laws and they pay no attention to Torah's Shabbas work prohibition. I also know people who were "born and raised" by two Gentile parents and keep the Torah dietary laws and they observe the Torah's Shabbas work prohibition. I would say the first group is Jewish by some DNA. The second group is comprised of Gentiles who have chosen to follow the Jewish religion and Torah, but that does not make them Jewish. Their religion is Jewish, but they are not Jewish. Just extremely wise. :)