Its Time To Grow Up!| Galatians 4:1-20 | Pastor Justin A. Serra (LIVE)

New City Fellowship highlights practical steps for gospel-centered community life before turning to a careful reading of Galatians 4. The church offers wallet-sized invitation cards, a connect card for membership, baptism, and service, and new community resource cards linking people to vetted local help—immigration lawyers, food pantries, counseling, and recovery programs. A Friday group works through The Gospel-Centered Community to foster small-group discipleship and to help neighbors encounter the gospel in accessible ways. These resources aim to move people from information to relationship, from need to pathways of care, and from Sunday attendance to ongoing formation.

Galatians 4 provides the theological backbone for the call to maturity. Paul contrasts an heir who is still a child with slavery under guardianship to show that Christ’s coming changed everything: the fullness of time arrived, Christ redeemed those under the law, and adoption into God’s family became a present reality. The Spirit now cries, “Abba, Father,” as proof that slavery to elementary principles has ended and sonship has begun. The text warns against creeping legalism—adding human effort to Christ’s work—and exposes how that turn leads not to maturity but to spiritual infancy and exhaustion.

Three clear commands drive the passage: remember who you are, never go back, and let Christ be formed in you. Remembering identity as adopted heirs reframes obedience as freedom rather than performance. Never returning to legalistic practices preserves the liberty Christ purchased and refuses the false security of trying harder. Letting Christ be formed centers growth not on outward rule keeping but on inward transformation worked by the risen Lord through his Spirit, the church, and the means of grace until believers reflect Christ’s likeness. The chapter closes with an appeal born of deep affection—Paul’s anguish and longing for Christ to be formed in those he loves—inviting believers to exchange exhaustion for the joy of sanctification that flows from union with Christ. Worship and the Lord’s table follow as appropriate responses for those who have been redeemed and adopted.

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Key Takeaways

• 1. Remember identity as God’s children Believers must root spiritual life in adoption, not achievement. Identity as sons and daughters grounds motivation, so obedience flows from belonging instead of bargaining. When the Spirit cries “Abba,” that inward witness reorients fear, performance, and control toward trust and glad obedience. Cultivate daily reminders of this status to resist slipping back into merit-driven service. [48:05]
• 2. Do not return to bondage Returning to rules in place of grace trades liberty for exile. Slipping back into legalism keeps the heart small and the soul exhausted, because legalism rewards work rather than transforms the will. Recognize the patterns that lure back—comparison, fear, shame—and refuse to reenroll in infancy when maturity awaits. Stand firm in grace and refuse the subtle slavery of proving worth. [49:35]
• 3. Let Christ be formed within True growth focuses on inner formation, not outward performance. Christ shapes desires, affections, and decisions by his Spirit through Word, prayer, community, and the ordinary rhythms of the church. Aim for incremental heart change—being with Christ—rather than impressive behaviors performed to be seen. Expect sanctification as a patient, relational work of the risen Savior until his likeness fills daily life. [68:19]
• 4. Use gospel-centered community resources Practical tools matter for gospel care and witness: invitation cards, connect cards, and vetted resource links move compassion into connection. These resources create approachable pathways for belonging, help, and discipleship across language and need barriers. Keep them handy and offer them without hurry; the right card can point a hurting neighbor to long-term help and the gospel that redeems. [12:40]

Youtube Chapters

• [00:00] - Welcome
• [10:27] - Next Steps Table Overview
• [12:40] - Community Resource Cards Introduced
• [14:45] - Connect Card & Next Steps
• [15:51] - Gospel-Centered Community Book Group
• [19:13] - Children Dismissal and Prayer
• [22:02] - Galatians 4: Context and Tone
• [36:10] - Heir, Guardianship, and the Law
• [41:11] - Redemption and Adoption Explained
• [49:35] - Warning Against Legalism
• [64:16] - Paul’s Anguish: Childbirth Imagery
• [67:26] - Christ Formed in Believers
• [69:56] - Communion Invitation and Response

Bible reading: Galatians 4:1-7 (ESV)
I mean that the heir, as long as he is a child, is no different from a slave, though he is the owner of everything, but he is under guardians and managers until the date set by his father. In the same way we also, when we were children, were enslaved to the elementary principles of the world. But when the fullness of time had come, God sent forth his Son, born of woman, born under the law, to redeem those who were under the law, so that we might receive adoption as sons. And because you are sons, God has sent the Spirit of his Son into our hearts, crying, “Abba! Father!” So you are no longer a slave, but a son, and if a son, then an heir through God.

Observation questions

1. According to the analogy in verses 1-2, what is the difference between a child who is an heir and a slave, even though the child owns everything?
2. What four specific actions did God take "when the fullness of time had come" (verses 4-5)?
3. What is the result of God sending the Spirit of His Son into our hearts (verse 6)?
4. What are some of the "weak and worthless elementary principles" [51:57] that people can become enslaved to again?

Interpretation questions

1. Why is it so shocking and foolish to return to a life of slavery after experiencing the freedom of being a son or daughter of God? [52:49]
2. How does the inner cry of "Abba, Father" from the Spirit change a person's motivation for obedience from performance to love? [56:29]
3. What does the process of "Christ being formed in you" [01:07:26] look like on a practical, daily level, and how is it different from just following a set of religious rules?
4. The sermon mentioned that spiritual exhaustion often comes from trying to control every facet of life. [27:58] Why does a performance-based approach to faith lead to this kind of tiredness instead of freedom?

Application questions

1. In what specific area of your life are you most tempted to live like a slave trying to earn your place, rather than as a secure son or daughter operating from your inheritance? [48:05]
2. What is one "chain" you need to stop trying to pick back up? What would it look like this week to actively refuse to re-shackle yourself to that old way of thinking or behaving? [53:43]
3. The Spirit inside you cries "Abba, Father." How can you create a daily reminder of your adopted identity to resist the pressure to perform and prove your worth? [49:10]
4. Growth is about inner transformation, not outward performance. What is one small, sustainable step you can take to simply "be with Christ" this week instead of adding another task to your spiritual to-do list? [01:08:19]
5. Exhaustion from control is a sign of living by the law instead of grace. [54:33] Where are you feeling spiritually tired right now, and what would it look like to bring that exhaustion to God as a child rather than trying to solve it by working harder?
6. Who is one person in your life that you can encourage this week by reminding them of their identity as a loved son or daughter of God, freed from the need to perform?