Actually it says that Abraham was going to sacrifice Isaac; that Isaac is the child of promise while Ishmael was the child of the flesh.
amen
it’s when Abraham offered isaac that God saved isaacs life and promised the seed of Christ the lamb savior of all nations
“And the angel of the Lord called unto Abraham out of heaven
the second time, And said,
By myself have I sworn, saith the Lord, for because thou hast done this thing, and hast not withheld thy son, thine only son:
That in blessing I will bless thee, and in multiplying I will multiply thy seed
as the stars of the heaven, and as the sand which is upon the sea shore; and thy seed shall possess the gate of
his enemies;
And in thy seed shall all the nations of the earth be blessed; because thou hast obeyed my voice.”
Genesis 22:15-18 KJV
So Christians through Gods act of sacrificing Christ his only begotten
“And
the scripture, foreseeing that God would justify the heathen through faith, preached before the gospel unto Abraham, saying, In thee shall all nations be blessed. ( genesis 12: 3)
So then they which be of faith are blessed with faithful Abraham.
Now to Abraham and his seed were the promises made. He saith not, And to seeds, as of many; but as of one,
And to thy seed, which is Christ.
For ye are all
the children of God by faith in Christ Jesus. For
as many of you as have been baptized into Christ have put on Christ.
There is neither
Jew nor Greek, there is neither bond nor free, there is
neither male nor female: for ye are all one in Christ Jesus. And
if ye be Christ's, then are
ye Abraham's seed, and heirs according to the promise.”
Galatians 3:8-9, 16, 26-29 KJV
become heirs of God through Christs promises to Abraham coming to pass in the gospel. The seed being born is those who are born again in Christ !!
People wonder how Abraham could sacrifice his son , the answer is he didn’t he had reckoned if he killed Isaac God would raise him back to life because he named Isaac that seed of promise he was a figure of Christ and it was an act of faith.
“
By faith Abraham, when he was tried, offered up Isaac: and he that had received the promises offered up
his only begotten son, Of whom it was said, That in Isaac shall thy seed be called:
Accounting that God was able to raise him up, even from the dead; from whence also he
received him in a figure.”
Hebrews 11:17-19 KJV
Though Isaac was second born ishmael is no longer recognized and Isaac is the only begotten recognized of God and this is a figure of Christ the only begotten but the second man. The second “ adam “ who became a life giving spirit
“And so it is written, The first man Adam was made a living soul;
the last Adam was made a quickening spirit.”
1 Corinthians 15:45 KJV
Through his sacrificial death Jesus sends his spirit to give us life
“Howbeit that was not first which is spiritual, but that which is natural; and afterward that which is spiritual. The
first man is of the earth, ( Adam ) earthy:
the second man is the Lord from heaven.”
1 Corinthians 15:46-47 KJV