when were the sons of israel born to israel son of isac?

 four faiths when  abraham fathered isac

i studied four 4 faiths about abraham

i emphasize first, the faith that lacks teachers to spread it desite it is a religious faith in the messages from the god of israel.

1, around 1200 bc the sons of israel were born as i will explain.

solomon was the first king of israel and jerusalem. this differs from jewish faith so a separate faith. please do not ridicule religions just because you think differently... solomon was king 940bc-920 bc only twenty years. followed by four generations until jehosapat and mesa in 843 bc.

the idea "14 generations between david and abraham" in ruth and cronicles 2:12 and matthew is correct nearly 300 years before, so  around 1240 bc abraham came to skem, by a miracle. this event influenced the book of genesis that wrote abraham said a plural verb "god they moved me" hinting that they many gods miraculously moved him  from a place where eber lived 430 years, another planet specificly in the stars of orion preserved by the name ur... please do not ridicule religions just because you think differently... the order in genesis was true on THAT planet, trees before fish in contrast to this planet earth, and there long lives 400 years there after flood and longer lives before flood indicating another planet and these details influenced book genesis which blended several legends. the faith gets these ideas from "God of israel" who botherd to warn that genesis is not accurate story nor holy nor truth from him,  but was influenced by blending several legends and influenced by a different ancient true story, that rabbis faild to preseve but influenced genesis leaving its marks in that book for us to find. only some details verifyd by God of israel were true but israel of son of isac fathered sons 40 years later not only in truth but showing that book egensis is not entirely a true book.

2, the rabbi count, which differs from bible, and mentioned here only for comparison.

the exit from egypt was 1312 bc. after entring 1520 bc [rashi talmud a.z. 9a].

less than "480 years" later solomon was king so the authors of kings "exagerated" see book seder doros for details of the rabbi count which is barely worth repeating and differs from bible books.

abraham fathered isac 3760-2050=1700 bc 400 years before exodus. around a hundred years later 60+70 israel fathered the "children of israel". if so in egyot less than 400 years and the numbers in genesis "400" years singular "in land" and known which by the section 430 "in egypt" is solved by rabbis adding words or claiming "exageration is not a lie." josephus also agrees with rabbis only 2 centuries in egypt. this contrasts the first faith, the egypt story "was written to claim" abraham in 1240 bc was "returning home from egypt." that was the purpose of the book exodus, by deceitful rabbis,  to hide the truth, but the book was separate from the God of israel who knew the truth and warnd that books exodus and genesis were neither holy nor true as rabbis claim and many christians accept only due to rabbis transmitting them. did jesus ever say "book genesis is good?" certainly not ever.

3, a christian calculation: solomon was king 960 bc for 40 years. exodus 1440 bc. entry 1870 bc jaqob aged 130. jacobs birth 2000 bc and nation "children of israel" soon afterwards... around 1950bc.... truly an ancient nation. isac birth 2060. abraham birth 2160 bc starting monotheism of "three gods in one" as indicated by the plural verb "they moved me" and moses agreed in the story of jaqob "they showed themselves gods". 

despite rabbis say the explanation closest to the words is best at the ne to believe they insist that "plural verb does not prove many"... yet the best interpretation by their own measure is that plural is nearest the plural verb. the many names in genesis "el shadi, el elyon, elohim and more" are many names of the same one yet we could say the same claims about hinduism... many names and plural is "the royal we' so both hinduism and the book genesis are EQUALLY monotheistic... still closer to the text is the idea that "plural is many" and each of the many had a name to distinguish it, as above abraham was not monotheistic nor moses until later in book duteronomy... for the need of war.  moses prepared to enter israel and for the purpose to justify killing cananites he changed to monotheistc and said kill those idolworshippers finally excluding "no other god but one".

4, the faith based on archeology, when i studied in university haifa the teachers directed me to the book by history professor that specifyd "nothing before mesa in 800 bc is known yet." it emphasized "we cannot reach any conclusion about solomon nor abraham nor egypt and cannot accept books exodus and genesis without checking and worse these books are known to be flawed" as specifed by that professor of history.  therefore we must not accept biblical books as truth... unless god tells us the true history... but that requires faith in mesages that cannot be tested.

the israeli ministry of education wrote to me that the correct method to teach bible is to specify "we dont know the years numbers" and "not to use year numbers".

certainly we must not accept the flawed books kings [known by years of nebukadnezer and mesa] nor judges known to be inaccurate nor  exodus nor genesis... which is why the first one is a faith based on messages from God of israel not based on archeology. so in the end the answer is "sometime before 800 bc if those names abraham and juda were real people.