The Baal Haturim says that the first words in Parshas Lech Lecha are foreshadowing what is to come at the end of the Parsha. At the beginning of this weeks Parsha we are introduced to Avraham and his many fascinating characteristics but he seems to be missing one thing, fatherhood. After years and years of searching and looking for meaning in his life he lacks the one thing that he wants most, a child.
The Baal Haturim tells us that the words Lech lecha in this weeks Parsha hint to Avrahams eventual bracha of becoming a father. If one were to add up the words lech lecha. It would equal 100 which is the age at which Avraham was zoche to have Yitzchak. The problem is however that Yitzchak was Avraham’s second child not the first!? He answers that that too is hinted to in the words “Lech Lecha.” If we count up the nekudos (dots equaling 10 each and lines equaling 6) then they add up to 86, which was Avraham’s age when Yishmael was born.