Galatians 4:3 describes former slavery to worldly principles — the bondage from which believers are now free as children of the free woman.

Galatians 4:7 declares believers are no longer slaves but sons and heirs — directly reinforcing the freedom identity in this verse.

Galatians 5:1 immediately applies the freedom: 'For freedom Christ has set us free; stand firm' — directly building on being children of the free woman.

Galatians 5:13 warns not to use freedom as opportunity for the flesh but to serve — expanding the practical implications of being free children.

John 1:12 declares that believing in Christ gives the right to become children of God — directly affirming the sonship Paul attributes to believers.

John 1:13 states that children of God are born not of flesh or human will but of God — parallel to the spiritual birth contrasted with the slave woman's offspring.

John 8:36 promises that if the Son sets you free, you are free indeed — reinforcing the true freedom of those born of the free woman.

Hebrews 2:15 shows Christ delivers from fear-of-death slavery — the very bondage the freedom in Christ overcomes.

John 8:35 contrasts slave and son — the slave does not remain, the son does. This echoes the fate of Hagar's vs. Sarah's son in the allegory.

1 John 3:1 declares believers are called children of God — the same identity as children of the free woman.

1 John 3:2 adds that being God's children now includes future transformation when Christ appears — deepening the hope.