Imagine two students at school. One keeps saying: “I'm the smartest in the class!” The other doesn't say anything, but gets the best grades and always helps classmates. Which one do people respect more?
Proverbs says: let others speak up for you. When you work hard and serve the people around you, they naturally start speaking well of you, and that's worth so much more! Jesus was the Son of God, but He didn't go around shouting it: He served, healed, and loved. And people recognized who He was by what He did.