ועשית את הקרשים למשכן עצי שטים
Rashi comments that Yaakov Avinu anticipated the need for lumber for the building of the Mishkan. Aware that wood was not a commodity one found in the barren wilderness, he planted these trees in Egypt upon his arrival. He instructed his children that when they would eventually leave Egypt – at the end of their exile – they should take the wood with them. Horav Doniel Alter, Shlita (son of the Pinchas Menachem), adds that immediately upon his arrival in what was to be galus Mitzrayim, the Egyptian exile, Yaakov sought to imbue his children and all his future descendants…