Both Judaism and Christianity share the same Old Testament as our holy scriptures. The foundations of our faith in God are rooted in the Old Testament, so also that of the Jews, for their history and their laws are all in the Old Testament. Moreover, the entire Old Testament was written by Jews. 'The New Testament was also written by Jews with the exception of Luke. 'Judaism is the name that men have attached to the formative stages of biblical faith (Old Testament) and Christianity is the name that men have attached to the completing stage of biblical faith (New Testament).'
Judaism is The Mother Of Christianity
Christianity as a religion was an offshoot of Judaism. It has been said that Judaism does not need Christianity to explain its existence, but Christianity needs Judaism both to explain its existence and what it believes. Hence, Christianity has also been termed historically as the Judeo-Christian faith. In the early years of the Christian faith, Christianity was regarded as just another sect of Judaism (Acts 28:22) known as the sect of the Nazarenes. The early disciples and the 12 Apostles were all Jewish. Apostle Paul even took a Nazarite vow (Num. 6) to prove to his critics that he was a Torah-observant Jew (Acts 21:17-26). The term 'Christians' surfaced only in AD 42 when the disciples were first called that in Antioch (Acts 11:26). The term gradually was adopted to differentiate believing Jews from unbelieving Jews and over time, it became a separate identity altogether. "...don't boast as if you were better than the branches! However, if you do boast, remember that you are not supporting the root (Israel's forefathers), the root is supporting you (Church)." Rom. 11:18 (JNT)
Salvation Is Of The Jews
"You people don't know what you are worshipping; we worship what we do know, because salvation comes from the Jews." John 4:22 (JNT). These were Jesus' very own words, that salvation belongs to the Jews. The gospel that we hold dear, first belongs to the Jews for the gospel was first preached to Abraham, the first Jew. All the blessings we have in Christ are first to be found in Abraham to whom God promised those blessings. And the promises of the Abrahamic Covenant have been entrusted to his descendants, the Jews. Without the Jews, we would have no patriarchs, no prophets, no apostles, no Bible and no Savior! Deprived of all these, how much salvation would we have left to us? None! "....in thee (Abraham) shall all families of the earth be blessed." Gen. 12:3 (KJV) "... in thee and in thy seed shall all the families of the earth be blessed." Gen 28:14 (KJV) "Then what advantage has the Jew? What is the value of being circumcised? Much in every way! In the first place, the Jews were entrusted with the very words of God." Rom. 3:1-2 (JNT)
Salvation Is Extended To The Church Via The Jews
And it was finally through Jesus (Yeshua), born a Jew that the promises given to Abraham have been extended to the rest of the world that we may become partakers of those same promises. "at that time had no Messiah. You were estranged from the national life of Israel. You were foreigners to the covenants embodying God's promise. You were in this world without hope and without God. But now, you who were once far off have been brought near through the shedding of the Messiah's blood." Eph. 2:12-13 (JNT) "that in union with the Messiah and through the Good News the Gentiles were to be joint heirs, a joint body and joint sharers with the Jews in what God has promised." Eph. 3:6 (JNT)
Courtesy of www.patriarchywebsite.com