Jewish Christians are basically Jewish people, who eat kosher, and celebrate the feasts of Leviticus 23, as well as Purim (book of Esther), and Hanukkah (books of Maccabees), but also believe that Jesus was indeed the JEWISH Messiah.
Most regular Jews and Christians are unaware that Jesus declared Himself to be the Messiah in JOHN Chapter 10 (22-39) at the Temple on Hanukkah. The books of MACCABEES (found in the CATHOLIC Bible) and JOHN Chapter 10 are read by Jewish Christians during Jewish-Christian Hanukkah.
When a poor Jewish family celebrates Hanukkah yet does not have any money to provide gifts for each other. In this instance a selfgift is proclaimed, allowing another member of their immediate family to have consensual heterosexual sexual intercourse with them, thus satisfying the gift requirement. Sometimes father and daughter or brother and sister selfgifts will be given in this instance as long as both gifters are at least adolescent age. In the case that there are pre-adolescents in the family, the father and mother have sexual intercourse in front of their children, thus gifting to them to a show of lovemaking.
My mom and dad lost their jobs due to downsizing and the economy is terrible. This Hanukkah we did not have any money to buy gifts for each other. My sister offered a Hanukkah Poverty Selfgift. It wasn't right but she offered so I screwed her brains out. My parents were understanding of the situation since she didn't have a gift. I will never tell the guys in school about it though.