Yes, the apostles were Jewish.
Jesus was Jewish and the apostles were Christians because they followed him :)
Yes, everyone of them.
All of the apostles were jewish.
The 12 apostles were primarily from Jewish tribes, such as Judah, Benjamin, and Levi.
Yes, Matthew, one of the twelve apostles of Jesus, is believed to have been Jewish.
Jesus was Jewish, as were each of the Apostles :)
Pesach (also called Passover)
They were Jewish as Jesus and the Apostles were born as.
Most likely all were Jews, may be Matthew was not.
Pentecost
The 12 apostles were believed to be descended from various Jewish tribes, but specific information about their tribal ancestry is not clearly documented in historical records.
All of the apostles and Jesus were Jewish, however, they began Christianity.