From call, promise and covenant of Abraham

to the marriage of Hagar

10

From marriage of Hagar to birth of Ishmael

1

From birth of Ishmael to birth of Isaac

14

From birth of Isaac to his being weaned and

becoming the seed at the casting out of Ishmael

5

From the weaning of Isaac

to the going down into Egypt

From the going down into Egypt , to make up

the 400 years of Genesis 15:13 and

the 430 years of Exodus 12:40,41

'The method of fixing the date of the weaning of Isaac is strictly

logical and mathematically exact.  We begin with the call, promise,

covenant or sojourning of Abraham, which took place immediately after

the death of Terah, (An. Hom. 2083).  There is the direct and positive

testimony of the Hebrew text for the fact that the period from that

point to the Exodus was a period of 430 years; therefore the date of

the Exodus must be 2083 + 430.  (An. Hom. 2513.).  We have again the

direct and positive testimony of the Hebrew text for the fact that the

Seed of Abraham should be strangers and sojourners for the period of

400 years.  That period ended with the Exodus.  (An. Hom. 2513.).

Therefore it began 2513 - 400 = 2113, and since Isaac was born (An.

Hom. 2107), he was then 5 years old.  But Isaac became the sole Heir

(with whom we may connect the word Seed) of Abraham on the day he was

weaned.  On that day Abraham made him a great feast to celebrate the

event.  Ishmael was Abraham's heir no longer.  Isaac had taken his

place.  He mocked, and was cast out' (Martin Anstey).

The four generations are those of Levi, Kohath, Amram and Moses (Exod.

M

Here in this initial promise to Abraham the final return of Israel is

foreshadowed.  As in Genesis 15, this return is based upon sacrifice and

covenant; as there, human agency is eliminated, for Abraham was put into a