KJV:
Ye are the children of the prophets, and of the covenant which God made with our fathers, saying unto Abraham, And in thy seed shall all the kindreds of the earth be blessed.
NASB:
"It is you who are the sons of the prophets and of the covenant which God made with your fathers, saying to Abraham, 'AND IN YOUR SEED ALL THE FAMILIES OF THE EARTH SHALL BE BLESSED.'
KJV:
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.
NASB:
The Scripture, foreseeing that God would justify the Gentiles by faith, preached the gospel beforehand to Abraham, saying, "ALL THE NATIONS WILL BE BLESSED IN YOU."