I was just poking around at it a bit... found stuff on it in some commentaries, university thesis, etc... some viewed it more simply than others, some seemed to dig too deep... lol
But just thought I'd look a bit
"For salvation is of the Jews"
The story of how the blessings of God would come not only
through the faithfulness of Abraham and the child of promise, Isaac,
but also by the Children (nation) of Israel.
14 = 7x2 thus 14+14+14 = 42 which is = 6x7
7 = perfection of God in creation and power etc.
6 = humankind: created on the sixth day
God comes to the Jews (his own) through human form in history
and thus the promises made to Abraham are fulfilled.
Isaac, the child of promise equates to Jesus [Yeshua] being the prophet
of promise - the anointed one - the promised Messiah.