Isaiah 54:13

54:13 All your children will be followers of the Lord,

and your children will enjoy great prosperity.

Galatians 4:26

4:26 But the Jerusalem above is free, and she is our mother.

tn Heb “and great [will be] the peace of your sons.”

sn The meaning of the statement the Jerusalem above is free is that the other woman represents the second covenant (cf. v. 24); she corresponds to the Jerusalem above that is free. Paul’s argument is very condensed at this point.