Sorry Intojoy, but you are mistaken. The first Christians were nothing more than Christians. (Acts 11:26) The Sect of the Nazarenes was composed of former Gentiles who had converted to Judaism through the Apostles of Jesus, especially Peter, the one chosen to be the Apostles of the Gentiles. (Acts 15:7) The first Christians turned back to Gentiles for having been persuaded by Paul to become Christians; hence, they were no longer of the Nazarene Sect of Judaism when Paul founder his church.
The point with 70 and 135 ACE is that the whole Nazarene Sect joined as one to the BarCorba war with gusto and were almost 100% exterminated. The Christians for being all the way on the side of the gospel of Paul, did not join the war and escaped the slaughter.
Rom 1:16 For I am not ashamed of the gospel of Christ: for it is the power of God unto salvation to every one that believeth;
to the Jew first, and also to the Greek.
Act 2:14 But Peter, standing up with the eleven, lifted up his voice, and said unto them,
Ye men of Judaea, and all ye that dwell at Jerusalem, be this known unto you, and hearken to my words:
Act 2:15 For these are not drunken, as ye suppose, seeing it is but the third hour of the day.
Act 2:16 But this is that which was spoken by the prophet Joel;
Peter is speaking to the people that would understand Joel, Jews.
Act 2:22
Ye men of Israel, hear these words; Jesus of Nazareth, a man approved of God among you by miracles and wonders and signs, which God did by him in the midst of you, as ye yourselves also know:
Act 2:36
Therefore let all the house of Israel know assuredly, that God hath made that same Jesus, whom ye have crucified, both Lord and Christ.
Act 2:37 Now when they heard this, they were pricked in their heart, and said unto Peter and to the rest of the apostles, Men and brethren, what shall we do?