ביום החדש הראשון באחד לחדש תקים את משכן אהל מועד
Chazal (Yalkut Melachim 184) teach that the work of constructing the parts of the Mishkan actually concluded on Kislev 25, but Hashem delayed its completion until the month of Nissan – the month in which Yitzchak Avinu was born. What is the significance of the date of Kislev 25 as the date on which the Mishkan was ready? Why did they delay until Rosh Chodesh Nissan to use the Mishkan? Last, what role does Yitzchak play vis-à-vis the implementation of the Mishkan? The Zera Shimshon quotes Rabbeinu Bachya (Pikudei 21) who says that the construction of the Mishkan corresponded to…