In Galatians 4:8–11, Paul warns believers of the danger of turning back to the things that once held them in slavery. Before coming to Christ, the Galatians did not know God and were enslaved to false gods. Through faith in Jesus, however, they had come to know God—or, as Paul emphasizes, to be known by God. Their salvation was rooted not in their own effort, but in God’s gracious initiative to love them, choose them, and bring them into a relationship with Himself.
Paul is therefore astonished that the Galatians would consider returning to religious observances as a means of gaining right standing with God. The law can reveal God’s righteous standard and expose sin, but it cannot save. Adding religious performance or any other requirement to faith in Christ exchanges the freedom of the gospel for slavery.
The message also emphasizes the perseverance and assurance of those who belong to Christ. Christians are called to examine what they are trusting in for salvation and to resist returning to former patterns of sin, self-reliance, or religious performance. God lovingly uses His Word, warnings, discipline, and promises to call His children back when they wander. The same grace that brings believers to faith also sustains them, giving confidence that God will complete the work He has begun.