Introduction
One verse before the famous 'stand fast in the liberty' (5:1), Paul names what believers are: children of the free woman. Galatians 5:1's command to stand free presupposes 4:31's identity — you cannot stand in freedom you do not know you have.
Historical Context
Original Language Insights
Theological Significance
The gospel rewrites lineage. Through faith in Christ, believers are grafted into Sarah's free line, inheriting the promise rather than working for it. The next verse's call to stand free is impossible without this prior identity.
Practical Application
Are you still living like a slave child — earning, fearing, performing? Verse 31 says no. You are Sarah's child by promise. Then 5:1 says: live like it.