Penelitian ini bertujuan untuk memahami sinergitas antara orang tua dan guru Sekolah Minggu dalam pembinaan iman anak berdasarkan Ulangan 6:6-7. Fokus penelitian diarahkan pada pola komunikasi antara orang tua dan guru Sekolah Minggu serta keterlibatan orang tua dalam mendukung pertumbuhan iman anak. Penelitian ini menggunakan metode kualitatif dengan pendekatan deskriptif. Teknik pengumpulan data dilakukan melalui observasi, wawancara, dan dokumentasi untuk memperoleh pemahaman yang mendalam mengenai pembinaan iman anak dalam keluarga dan gereja. Hasil penelitian menunjukkan bahwa komunikasi yang terbuka, rutin, dan berkesinambungan antara orang tua dan guru Sekolah Minggu mampu menciptakan kerja sama yang harmonis dalam pembinaan iman anak. Selain itu, keterlibatan orang tua melalui pendampingan rohani, pengulangan pengajaran firman Tuhan di rumah, dan pemberian teladan hidup Kristen memberikan pengaruh positif terhadap pertumbuhan iman anak. Sinergitas antara keluarga dan gereja membantu anak memperoleh pembinaan iman yang lebih konsisten, terpadu, dan sesuai dengan nilai-nilai Kristiani berdasarkan prinsip Ulangan 6:6-7. This study aims to understand the synergy between parents and Sunday School teachers in children’s faith development based on Deuteronomy 6:6–7. The focus of the study is directed toward the communication patterns between parents and Sunday School teachers, as well as parental involvement in supporting children’s spiritual growth. This study employs a qualitative method with a descriptive approach. Data collection techniques were carried out through observation, interviews, and documentation to obtain an in-depth understanding of children’s faith development within the family and church contexts. The results of the study indicate that open, regular, and continuous communication between parents and Sunday School teachers is able to create harmonious cooperation in children’s faith development. In addition, parental involvement through spiritual guidance, reinforcement of God’s Word at home, and the provision of Christian role models has a positive influence on children’s spiritual growth. The synergy between family and church helps children receive faith development that is more consistent, integrated, and aligned with Christian values based on the principles of Deuteronomy 6:6–7.