Purim is not one of YHWH's command holy days. Although it is not one of the commanded Appointed Times, it is a feast all about YHWH celebrating a major historical event. In John 5* we discover that the Messiah even went to Jerusalem for this feast!
Purim commemorates the deliverance of YHWH's people in the ancient Persian Empire from destruction in the wake of a plot by Haman, a story recorded in the Biblical Book of Esther. It is a fun holiday where many synagogues present plays about the story of Esther, some serious, some funny, but it is always a fun time.
According to Wikipedia:
"Purim is celebrated annually according to the Hebrew calendar on the 14th day of the Hebrew month of Adar (Adar II in leap years), the day following the victory of the Jews over their enemies. Purim begins at sundown. In cities that were protected by a surrounding wall at the time of Joshua, Purim is celebrated on the 15th of the month; Everywhere else, Purim is on the 14th, while the 15th is known as Shushan Purim. Due to Jerusalem's importance, it celebrates Purim on the 15th despite it not having been surrounded by a wall since the time of Joshua. This is to prevent less holy cities having an advantage over Jerusalem.
"Purim is characterized by public recitation of the Scroll of Esther (keriat ha-megillah), additions to the prayers and the grace after meals (al hannisim), giving mutual gifts of food and drink (mishloach manot), giving charity to the poor (mattanot la-evyonim), and a celebratory meal (se'udat Purim); other customs include drinking wine, wearing of masks and costumes, and public celebration.
"According to the Book of Esther, Haman, royal vizier to King Ahasuerus planned to kill the Jews, but his plans were foiled by Mordecai and Queen Esther. The day of deliverance became a day of feasting and rejoicing."
As an aside, some Christians have written to our website to make the argument: "Who are you to bash us for doing Christmas, when you are clearly keeping a feast that is also NOT in the Bible?"
While this may be true, the fact remains, Purim is an historic event which gives all glory to YHWH ... whereas "Christmas" (which, with its rabid commercialism and lies about the mythical "Santa Claus", has relegated the supposed "birth of Jesus" into the background)is not mentioned anywhere. Based on the Gospel of Luke, "Christmas" (the birth of Messiah, according to Christianity) was not and cannot be December 25th. However, the Bible DOES specify that 14 and 15 Adar are days of remembrance (Esther 9:21-22)....
FOOTNOTE: A feast is named in John 5:1, that is referred to as the "feast of the Yehudeans" (or "feast of the Jews" in many English translations), and the scripture records the Messiah goes to Jerusalem. In John 5:9, we find out the day is a 7th day - a Sabbath. The only Jewish holiday which fell on a weekly Sabbath in the 3 years of the Messiah's ministry was Purim, February 26th, 28 CE (Gregorian proleptic).