The Rosh Yeshiva addresses the question about when HaShem instructed Moshe (Moses) about the building of the Mishkan (Tabernacle) in Parashas Terumah, explaining how we can know it was before the Cheit HaEgel (Sin of the Golden Calf) by understanding the essence and the greatness of the gift of the Mishkan/Beis HaMikdash (Temple).
