Hebrews 11:18

18 of whom it was said -- `In Isaac shall a seed be called to thee;'

Hebrews 11:18 Meaning and Commentary

Hebrews 11:18

Of whom it is said
That is, of Isaac, Abraham's own son, whom he offered up; or rather, "to whom it was said", as the Vulgate Latin and Syriac versions render it; that is, to Abraham, for to him was this said, ( Genesis 21:12 )

that in Isaac shall thy seed be called;
that numerous natural seed of his, which should inherit the land of Canaan; and his special famous seed, the Messiah, to whom the promises were made; (See Gill on Romans 9:7).

Hebrews 11:18 In-Context

16 but now they long for a better, that is, an heavenly, wherefore God is not ashamed of them, to be called their God, for He did prepare for them a city.
17 By faith Abraham hath offered up Isaac, being tried, and the only begotten he did offer up who did receive the promises,
18 of whom it was said -- `In Isaac shall a seed be called to thee;'
19 reckoning that even out of the dead God is able to raise up, whence also in a figure he did receive [him].
20 By faith, concerning coming things, Isaac did bless Jacob and Esau;
Young's Literal Translation is in the public domain.