Josephus + II Cainaan = St. Jerome + 77 years

Quoting the Josephus quote from earlier:

Resp. to Carter / Cosner : In the Lifetime of Josephus
https://creavsevolu.blogspot.com/2018/09/resp-to-carter-cosner-in-lifetime-of.html

for Terah begat Abram in his seventieth year. Nahor begat Haran when he was one hundred and twenty years old; Nahor was born to Serug in his hundred and thirty-second year; Ragau had Serug at one hundred and thirty; at the same age also Phaleg had Ragau; Heber begat Phaleg in his hundred and thirty-fourth year; he himself being begotten by Sala when he was a hundred and thirty years old, whom Arphaxad had for his son at the hundred and thirty-fifth year of his age. Arphaxad was the son of Shem, and born twelve years after the deluge.

ADD Cainan ...

Anno Diluvii

12 Arphaxad born

135+12=147

147 Cainan born

128+147=175

175 Sala born

130+175=305

305 Heber born

134+305=437

437 Phaleg born

130+437=567

567 Ragau born

130+567=697

697 Serug born

132+697=829

829 Nahor born

120+829=949

949 Terah born

70+949=1019

1019 Abraham born

2957		1019
2015		- 942
=942		= 77

Now, which ones can we change?

If I go to the LXX ages for post-Flood patriarchs here:

CMI : Some remarks preliminary to a biblical chronology
by Pete Williams
https://creation.com/some-remarks-preliminary-to-a-biblical-chronology

Then I can validate or otherwise the ages, sticking to LXX readings.

year of parenthood

Arphaxad

135 = 135

Cainan

128 c. 130

Sala

130 = 130

Heber

134 = 134

Phaleg

130 = 130

Ragau

130 c. 132

Serug

132 c. 130

Nahor

120 > 79

Terah

70 = 70

Nahor can be drastically reduced from 120 to 79. And Arphaxad's birth from 12 to 2 after Deluge.

Anno Diluvii

2 Arphaxad born

135+2=137

137 Cainan born

128+137=165

165 Sala born

130+165=295

295 Heber born

134+295=429

429 Phaleg born

130+429=559

559 Ragau born

130+559=689

689 Serug born

132+689=821

821 Nahor born

79+821=900

900 Terah born

70+900=970

970 Abraham born

970
942
=28

We are at a 28 years discrepancy, and I don't know exactly how to close it ... /HGL