From the Creation to the Death of Isaac - Flavius Josephus

Footnotes:
1. Note, that both here and Hebrews 11:17, Isaac is called Abraham's only
begotten son, though he at the same time had another son, Ismael. The
Septuagint expresses the true meaning, by rendering the text the beloved
son.
2. Here is a plain error in the copies which say that king David afterwards
built the temple on this Mount Moriah, while it was certainly no other
than king Solomon who built that temple, as indeed Procopius cites it
from Josephus. For it was for certain David, and not Solomon, who built
the first altar there, as we learn, 2 Samuel 24:18, etc.; 1 Chronicles
21:22, etc.; and Antiq. B. VII. ch. 13. sect. 4.
3. It seems both here, and in God's parallel blessing to Jacob, ch. 19. sect.
1, that Josephus had yet no notion of the hidden meaning of that most
important and most eminent promise, "In thy seed shall all the families
of the earth be blessed. He saith not, and of seeds, as of many, but as of
one; and to thy seed, which is Christ," Galatians 3:16. Nor is it any
wonder, he being, I think, as yet not a Christian. And had he been a
Christian, yet since he was, to be sure, till the latter part of his life, no
more than an Ebionite Christian, who, above all the apostles, rejected
and despised St. Paul, it would be no great wonder if he did not now
follow his interpretation. In the mean time, we have in effect St. Paul's
exposition in the Testament of Reuben, sect. 6, in Authent. Rec. Part I.
p. 302, who charges his sons "to worship the seed of Judah, who should
die for them in visible and invisible wars; and should be among them an
eternal king." Nor is that observation of a learned foreigner of my
acquaintance to be despised, who takes notice, that as seeds in the plural,
must signify posterity, so seed in the singular may signify either
posterity, or a single person; and that in this promise of all nations being
happy in the seed of Abraham, or Isaac, or Jacob, etc. it is always used
in the singular. To which I shall add, that it is sometimes, as it were,
paraphrased by the son of Abraham, the son of David, etc., which is
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