The work on the Tabernacle progressed rapidly, for everything was ready in the month of Kislew, but it was not set up until three months later. The people were indeed eager to set up the sanctuary at once and to dedicate it, but God bade Moses wait until the first day of the month of Nisan, because that was Isaac's birthday, and God wished the joy of dedication to take place on this day of joy. The mockers among Israel, of course, to whom this was not known, made fun of Moses, saying: "Of course, is it possible that the Shekinah should rest over the work of Amram's sons?"