How to congratulate someone on the full moon of their grandson?

1. I heard that the little baby is one month old, and I send you my most sincere blessings. I hope he will grow up healthily, happily, and be strong and smart.

2. Your grandson is a star of hope in the family. May he grow up happily and live smoothly every day.

3. Congratulations to your grandson on his full moon, and hope that he can grow up to be a smart and lovely little angel.