Wisdom is shown to be right by the lives of those who follow it. (The Bible)
No doubt, the best test for the veracity of someone’s ideas and opinions is that they prove to be true in experience. “The proof is in the pudding,” they say. As you can tell what kind of tree you’re looking at by its fruit, so you can tell what is real when people’s lives of integrity match with what they say. The walk of a wise person will verify his or her claims of knowing truth.
If you are wise and understand God’s ways, prove it by living an honorable life, doing good works with the humility that comes from wisdom (James 3:13).