What does God will Increase mean?

god will increase means the best person in the world

Another response:

When used in Scripture, the phrase "God will increase" usually has an object, such as, "God will increase the fruits of your righteousness..." 2 Corinthians 9:10. It may mean multiply, in the sense of providing numerically more of the object, or greater frequency or greater strength.

If the context suggests that God is the one that is increasing, it would mean that God is gaining in reputation. That is, multitudes who had not honored God would give to God that honor.