Treasury of Scripture Knowledge

Summary

Neither, because they are the seed of Abraham, are they all children: but, In Isaac shall thy seed be called.

In isaac

Bible References

Because

Luke 3:8
Live lives which shall prove your change of heart; and do not begin to say to yourselves, 'We have Abraham as our forefather,' for I tell you that God can raise up descendants for Abraham from these stones.
Luke 16:24
So he cried aloud, and said, "'Father Abraham, take pity on me and send Lazarus to dip the tip of his finger in water and cool my tongue, for I am in agony in this flame.'
John 8:37
You are descendants of Abraham, I know; but you want to kill me, because my teaching gains no ground within you.
Philippians 3:3
For we are the true circumcision--we who render to God a spiritual worship and make our boast in Christ Jesus and have no confidence in outward ceremonies:

In isaac

Hebrews 11:18
with regard to whom he had been told, "It is through Isaac that your posterity shall be traced."