By their fruits.

It is essential to stop relying solely on what people say, and instead observe their actions as they reveal their true character. Jesus once said, "By their fruits, you shall know all men", emphasizing the importance of observing one's behavior rather than their words or deeds. Therefore, it's crucial not to blindly trust someone who claims to be something, but rather take the time to witness their actions and observe the fruits they bear. Ultimately, everyone's true colors are eventually revealed, and it's only a matter of time.