The Power of Your Mouth

Scripture is clear about one thing: our words carry weight.

“The tongue has the power of life and death, and those who love it will eat its fruit.” Proverbs 18:21

When my sister was still a teacher, she once did an experiment with her class that stuck with me. The idea came from the work of Dr. Masaru Emoto, a Japanese researcher who studied the effects of words and intention on physical matter.

They took rice from the same batch and placed it into three containers. One jar was spoken to with encouraging and loving words. One jar was spoken to harshly, with anger. And one jar was ignored entirely. No words at all.

Over time, the results were surprising.

The jar spoken to with love began to ferment. The jar spoken to with hate began to mold. But the jar that was ignored became completely rotten.

The takeaway was simple. Being ignored was worse than being hated. At least hate acknowledged presence. Ignoring it treated it as if it did not matter.

In some way, words and even the absence of words changed the environment around that rice.

And if words can affect something as simple as rice, imagine the power they have in our relationships.

Jesus makes this even more personal.

“For the mouth speaks what the heart is full of… But I tell you that everyone will have to give account on the day of judgment for every empty word they have spoken.” Matthew 12:34, 36

Our words do not just reveal our hearts. They shape the environments we live in. The tone of your home. The culture of your friendships. The emotional safety your future children will feel. All of it is deeply influenced by how you speak.

Your marriage, friendships, and relationships will never be healthier than the words you speak within them.

Every word that comes out of your mouth is a seed—a seed of life or a seed of death.

If we constantly speak in negativity, harshness, or vulgarity, we should not be surprised when those same things begin to show up in our relationships. Scripture reminds us of a simple truth.

“A man reaps what he sows.” Galatians 6:7

But the opposite is also true.

When you speak loving words over your spouse, your friends, your family, even when it feels undeserved, you are planting seeds of life. When you declare what God says over them instead of what frustrates you about them, you begin to see them differently. And over time, they begin to change too.

There is a delay between sowing and reaping.

“Let us not become weary in doing good, for at the proper time we will reap a harvest if we do not give up.” Galatians 6:9

This is especially true with prayer.

Prayer is planting good seed.

My pastor, Jeff, has been teaching on this idea of a superbloom over the past year. Seeds can sit hidden beneath dry ground for a long time, unnoticed and seemingly unproductive. But when the rain finally comes, what once looked barren suddenly explodes with life.

That is how prayer works.

Every prayer you pray for someone is not wasted. It is stored. It is accumulating. It is working beneath the surface, even when you cannot yet see it. Those prayers fall into the cracks of dry places, and in God’s perfect timing, He sends the rain.

And when He does, there is a superbloom.

Keep praying for the people in your life. Keep speaking life over them. Keep trusting that God is moving even if you do not see it yet.

Every good word has value.

Sometimes we think correction means nagging or enforcing change. But often, nagging turns us into the enforcer instead of letting God be the transformer. There is a time for truth and accountability, but there is also great power in resting, praying, and letting God do the heart work.

Your mouth is powerful.

That is why we must train it for marriage, for friendships, for everyday life and for the children we have or will one day have. The words you practice now are shaping the future you will live in later.

So choose life. Speak life. Plant good seed, and trust God with the harvest.

Reflection Questions for the Week

1. What kind of seeds have my words been planting lately, life or death?
2. Are there people in my life I have spoken harshly to or quietly ignored?
3. Who is one person I can intentionally speak life over and pray for this week?

Image Credit: ©GettyImages/Klaus Vedfelt

Joe Navarro, known online as @joechristianguy, is a Christian content creator, entrepreneur, and cultural voice passionate about making faith approachable and impactful for the next generation. With over 4.5 million combined followers across TikTok, Instagram, and YouTube, Joe delivers bold, Gospel-centered truth through a mix of daily encouragement, short-form teachings, comedic skits, and authentic life experiences. His unique blend of theology, humor, and clarity has created space for millions of young believers and skeptics alike to engage with Scripture and real conversations about following Jesus in a digital world. In 2023, he co-created the popular card game Discernment alongside Jacob and Julia Petersen, which is now available in major retailers like Amazon, Walmart, Museum of the Bible, and Mardel. He also holds a degree in Agricultural Economics with a minor in Sales from Texas A&M.