There is a perennial temptation for the people of God to go back to slavery. After Israel was delivered from Pharaoh's tyranny, they found that freedom had its costs. They had no food; they ran into giants. So they longed to return to Egypt where there was bread, meat, and at least the semblance of protection—those chariots, pretty fancy.

A similar temptation came upon the Galatian Christians. God had brought them the gospel of Jesus Christ through Paul. But the Judaizers showed up shortly after preaching a different gospel, one that would take the Galatians back to bondage (Galatians 5:1). These Judaizers did not deny that Christ was the Messiah. But they insisted that if a man would be saved, then he must be circumcised, and thus keep all of the laws of Moses.

The Galatian situation maps on to Israel's situation in Moses' day. For Israel, there was no going back to slavery in Egypt. Egypt was under the judgment of God. For the Galatians, there was no going back to Jerusalem's Old Covenant with its sign of circumcision. Jerusalem was under the judgment of God. In our text, Paul develops an allegory to teach the Galatian Christians that through Christ they have been set free and must not turn back to a yoke of slavery.

The message is: You're children of the free woman so live free.