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.

General references

Bible References

Because

Luke 3:8
Bring forth therefore fruits worthy of repentance, and don't begin to say among yourselves, 'We have Abraham for our father;' for I tell you that God is able to raise up children to Abraham from these stones!
Luke 16:24
He cried and said, 'Father Abraham, have mercy on me, and send Lazarus, that he may dip the tip of his finger in water, and cool my tongue! For I am in anguish in this flame.'
John 8:37
I know that you are Abraham's seed, yet you seek to kill me, because my word finds no place in you.
Philippians 3:3
For we are the circumcision, who worship God in the Spirit, and rejoice in Christ Jesus, and have no confidence in the flesh;

In isaac

Genesis 21:12
God said to Abraham, "Don't let it be grievous in your sight because of the boy, and because of your handmaid. In all that Sarah says to you, listen to her voice. For from Isaac will your seed be called.
Hebrews 11:18
even he to whom it was said, "In Isaac will your seed be called;"

General references

Genesis 21:3
Abraham called his son who was born to him, whom Sarah bore to him, Isaac.
Genesis 25:5
Abraham gave all that he had to Isaac,