Some people think that they can know the hearts of others, but no one can know the heart of another person, except the Lord Himself,
“The heart is deceitful above all things, and desperately wicked; who can know it? I, the LORD, search the heart, I test the mind, even to give every man according to his ways, according to the fruit of his doings” (Jeremiah 17:9-10).
We hear people talk, and we watch their actions, leading us to believe that we know what is in their hearts, but, as the Lord said, the heart can deceive.
Therefore, no one can know the heart, except the One who created the heart of man, for He can search the heart and test it, and give to everyone the results of his or her thinking.
We can fool people, but we cannot fool God. Let us glorify Him with our hearts.