Midras Kejadian 15:1: Midrash Tanchuma Buber, Seder Olam Rabbah, Midrash Tehillim & Vayikra Rabbah

(Gen. 23:1:) NOW < THE LENGTH OF > SARAH'S LIFE WAS < A HUNDRED AND TWENTY-SEVEN YEARS >. (Gen. 24:1:) NOW ABRAHAM WAS OLD, WELL ALONG IN YEARS. This text is related (to Ps. 5:13 [12]): FOR YOU BLESS THE RIGHTEOUS ONE, < O LORD, ENCOMPASSING HIM WITH FAVOR AS WITH A BUCKLER >. From when the world was created until Abraham arose, the Holy One would bless his world. So, when he had created Adam and Eve, he blessed them, as stated (in Gen. 1:28): AND GOD BLESSED THEM…. He blessed Noah and his children, as stated (in Gen. 9:1): THEN GOD BLESSED NOAH AND HIS CHILDREN. When Abraham arose, he made him a father for all creatures,¹Buber suggests emending “creatures” to “blessings.” as stated (in Gen. 12:2f): AND YOU ARE TO BE A BLESSING…. < FOR IN YOU SHALL ALL THE FAMILIES OF THE EARTH BE BLESSED >. Ergo (in Ps. 5:13 [12]): FOR YOU BLESS THE RIGHTEOUS ONE (i.e., Abraham), O LORD, ENCOMPASSING HIM WITH FAVOR AS WITH A BUCKLER, in that the Holy One became like a shield for him, as stated (in Gen. 15:1): I AM YOUR SHIELD. Now a buckler is nothing but a shield, as shown in the verse (I Sam. 17:7): AND THE ONE BEARING THE BUCKLER WAS GOING BEFORE HIM (i.e., Goliath). What is the meaning of ENCOMPASSING HIM WITH FAVOR? That he blessed Abraham in his old age, as stated (in Gen. 24:1): NOW ABRAHAM WAS OLD.

From Adam to the Flood was 1656 years, and this is their enumeration: Adam 130, Seth 105, Enosh 90, Kenan 70, Mahalalel 65, Jared 162, Enoch 65, Methuselah 187, Lamech 182, and Noah was six hundred years old, etc." (Genesis 7, 6). Enoch buried Adam, and lived after him 57 years. Methuselah exhausted his days just before the Flood. From the Flood to the division [of languages] was 340 years. Noah lived ten years after the division [of languages]. Our father Abraham was at the division [of languages] 48 years old. Rabbi Yosei said: Eber was so great a prophet that he [preemptively] named his son Peleg ["division"], [aided] by the Holy Spirit. [Eber having foreseen what was to come] as it says "in his days the earth was divided" (Genesis 10, 25).

From Adam to the Flood was 1656 years, and this is their enumeration: Adam 130, Seth 105, Enosh 90, Kenan 70, Mahalalel 65, Jared 162, Enoch 65, Methuselah 187, Lamech 182, and Noah was six hundred years old, etc." (Genesis 7, 6). Enoch buried Adam, and lived after him 57 years. Methuselah exhausted his days just before the Flood. From the Flood to the division [of languages] was 340 years. Noah lived ten years after the division [of languages]. Our father Abraham was at the division [of languages] 48 years old. Rabbi Yosei said: Eber was so great a prophet that he [preemptively] named his son Peleg ["division"], [aided] by the Holy Spirit. [Eber having foreseen what was to come] as it says "in his days the earth was divided" (Genesis 10, 25).