The repeated refrain in Parashat Pekudei – one that appears over and over again – are the words: “As the LORD had commanded Moshe.” This expression appears fifteen times in our parasha; in the entire rest of the Torah it appears only about forty times. This repetition serves to inculcate in the reader’s consciousness in an unambiguous manner that there is no room for human creativity or reinterpretation of the subject discussed in the parasha – the construction and erection of the Mishkan.
