In Shemos 28:21 there are the words: שתים עשרה על שמתם which contains a 2 ELS code of the name משה and a 3 ELS code of the same name backwards. The 2 ELS code begins at the מ of שתים and go two letters to the left and repeat. The three ELS code starts with the ה of עשרה and go three letters to the left then repeat. So, Moshe is coded in Parshat Tetzaveh.