Berean Standard Bible (BSB)
So it is not the children of the flesh who are God’s children, but it is the children of the promise who are regarded as offspring.
World English Bible (WEB)
That is, it is not the children of the flesh who are children of God, but the children of the promise are counted as a seed.
Strong's King James
That is{G5123}{(G5748)}, They which are the children{G5043} of the flesh{G4561}, these{G5023} are not{G3756} the children{G5043} of God{G2316}: but{G235} the children{G5043} of the promise{G1860} are counted{G3049}{(G5736)} for{G1519} the seed{G4690}.
The F.O.G *
(8) This isn't the children of the flesh that are children of The אֱלֹהִים Elohim-God, rather the children of the promise-vow are counted for seed.
The F.O.G Message *
Young's Literal Translation
that is, the children of the flesh—these are not children of God; but the children of the promise are reckoned for seed;