With the 14th of Adar falling on Friday and the 15th on Shabbos, some things about Purim are very different. For those in cities like Jerusalem that were walled in ancient times, there is a Purim Meshulash, wherein the mitzvos are divided over three days. (Reminiscent of the three days the Jews fasted and repented in Shushan!)
They hear Megillah Thursday/Night Friday like the rest of the world, because one doesn’t read the Megilla on Shabbos, for fear of carrying it in a public domain. They also give Matanos L’Evyonim (charity) then. [There is an interesting question whether one who would normally read Megilla on the 15th can read for someone who normally reads on the 14th, since his obligation is different.]
Then, Shabbos, the regular Torah reading of Purim is read, and Sunday they have the Purim Seudah and send Mishloach Manos.
For those who celebrate Purim on the 14th, the festive Purim meal is eaten earlier in the day to maintain an appetite for the Shabbos meal. Though normally we try to have it extend into the night, this is not the case when it would lead into Shabbos. Following this line of thought, one should consider how drinking during the day may impact his Shabbos. It’s important not to do something now in a way that will keep you from fulfilling mitzvos later.
Thought of the week:
Think ahead. It wasn’t raining when Noah started building the ark.
