We find the power of the not so simple letters of the Aleph Beis with Hashem adding a ה to Avram's name thus enabling him to have children and also editing Sarai's name to allow her as well to bear a child.
The Yalkut Shemoni in the beginning of the parsha states a tradition that we have regarding the 5 double letters; .מנצפך They are all associated with geulah, a redemption of sorts. Avraham was saved drom Ur Kasdim with the double כ of . לך לך . Yitzchok was saved from the Philistines with the double מ of ממנו מאוד. Yaakov was saved from Eisav with the double נ' of הצילני נא. And from Egypt we were redeemed with the double פ of פקוד יפקוד.
What remains is the final redemption of Moshiach represented by the double צ of צמח....יצמח.
I would like to suggest perhaps a pathway for us to set that in motion. The Torah also has a double צ in consecutive Roshei Teivos. צדק צדק ירדוף. Perhaps if we can find and chase צדק all around us by applying בצדק תשפוט עמיתיך, always seeing 'every yid's a big tzaddik' it would ignite the double צ above as well and bring the final redemption in hastily in our days.