Actions speak louder than words.

Proverbs 27:19 NLT
[19] As a face is reflected in water, so the heart reflects the real person.

https://bible.com/bible/116/pro.27.19.NLT

What’s in your heart reveals who you really are. God sees the real you, your every thought, intention and motive. There is no facade to put on, on the inside of you, at the core of your being. You can’t pull the wool over God’s eyes. So often we hide ourselves, the inner self, from those around us. But we can’t hide from God

“The heart reflects the man” means that a person’s true character and inner nature are revealed through their actions and choices, just as a reflection in water shows you what you truly look like; this phrase originates from Proverbs 27:19 which says, “As water reflects the face, so one’s heart reflects the man.”.

Inner truth:
The “heart” is often used metaphorically to represent someone’s true intentions, desires, and motivations, which are not always readily apparent to others. But God knows my deepest intentions and motives. He knows my every thought:

Psalms 139:1-4 NLT
[1] O Lord, you have examined my heart and know everything about me. [2] You know when I sit down or stand up. You know my thoughts even when I’m far away. [3] You see me when I travel and when I rest at home. You know everything I do. [4] You know what I am going to say even before I say it, Lord.

https://bible.com/bible/116/psa.139.1-4.NLT

Actions speak louder than words:
This Proverb suggests that by observing someone’s behavior, you can understand their true character, even if they try to hide it. It also implies that individuals should be mindful of their actions and how they reflect their inner selves.
So often we see ourselves through the lenses we are wearing. The further one is from God, the more self-centered he will be. Pride and arrogance can distort how we see ourselves. When a man looks at his own reflection, as in water or in a mirror, he sees himself, walks away and forgets what kind of man he really is. God’s word is like a mirror. Seeing yourself through the lens of God’s word will keep you from becoming two-faced. Two-faced people are those who hide behind a mask or facade.  Two-faced people act one way in front of the church crowd, but just the opposite in public, outside of church.

Are you the same person you see in the mirror or water, reflecting back at you as you gaze at yourself?

James 1:22-25 NLT
[22] But don’t just listen to God’s word. You must do what it says. Otherwise, you are only fooling yourselves. [23] For if you listen to the word and don’t obey, it is like glancing at your face in a mirror. [24] You see yourself, walk away, and forget what you look like. [25] But if you look carefully into the perfect law that sets you free, and if you do what it says and don’t forget what you heard, then God will bless you for doing it.

https://bible.com/bible/116/jas.1.22-25.NLT