Matthew 15:18-20 is about Jesus teaching that it is not what enters the body from the outside that defiles a person, but what comes out of the heart, highlighting the significance of inner purity and the power of words and actions to reveal one’s true character.
18 But what comes out of the mouth proceeds from the heart, and this defiles a person.
19 For out of the heart come evil thoughts, murder, adultery, sexual immorality, theft, false witness, slander.
20 These are what defile a person. But to eat with unwashed hands does not defile anyone.”

Setting the Scene for Matthew 15:18-20
In Matthew chapter 15, we find Jesus surrounded by a crowd of people who have come to hear His teachings and witness His miracles. The scene takes place in the region of Galilee, where Jesus often traveled to spread His message of love and salvation. Among the crowd are His disciples, who have been following Him closely and learning from His wisdom and compassion.
As Jesus speaks to the people, He addresses the importance of what comes out of a person’s mouth, emphasizing that it is not what goes into the body that defiles a person, but rather what comes out of the heart. He explains that evil thoughts, murder, adultery, sexual immorality, theft, false testimony, and slander are what defile a person, highlighting the significance of inner purity and righteousness.
The setting is serene, with the Sea of Galilee glistening in the distance and the gentle breeze carrying Jesus’ words to the eager ears of the crowd. The disciples listen intently, absorbing His teachings and pondering the profound truths He imparts to them. In this moment, Jesus’ words resonate deeply with all who are present, challenging them to examine their hearts and strive for purity in thought and deed.
What is Matthew 15:18-20 about?
Jesus is emphasizing the importance of the intentions and attitudes that we hold in our hearts in this verse. He is pointing out that evil thoughts and actions are not simply superficial behaviors but originate from within ourselves. It is a reminder that our internal state of mind and heart greatly impact the way we interact with the world and the people around us. Jesus is suggesting that true transformation and righteousness must begin from within by highlighting the source of evil as the heart.
Reflect on this verse and consider the implications it has for your own life. How often do you pay attention to your thoughts and intentions before they manifest into actions? Are there areas in your heart where you need to seek forgiveness, healing, or renewal? Jesus challenges us to delve deeper into our hearts and address the root causes of our actions, not only focusing on external behavior. Our thoughts and actions will naturally align with goodness and grace as we cultivate purity and love in our hearts.
Understanding what Matthew 15:18-20 really means
In Matthew 15:18-20, Jesus addresses the Pharisees and the crowd, shedding light on what truly defiles a person. He emphasizes that it is not external actions or rituals that make one impure, but rather the condition of the heart. This distinction is crucial in understanding the role of the heart in one’s spiritual and moral life. Our words and actions are a direct reflection of our inner thoughts and feelings, highlighting the importance of guarding our hearts, as Proverbs 4:23 advises, “Above all else, guard your heart, for everything you do flows from it.”
Jesus’s statement, “But the things that come out of the mouth come from the heart,” underscores the connection between our internal state and external behavior. This aligns with the biblical wisdom found in 1 Samuel 16:7, where God looks beyond outward appearances to the heart. The list of sins that Jesus mentions, such as murder, adultery, theft, and slander, originating from the heart, illustrates the depth of moral failings that can stem from within. This echoes the sentiment in Jeremiah 17:9, emphasizing the deceitful nature of the heart.
In today’s society, where emphasis is often placed on external appearances and actions, Jesus’s teachings challenge us to look inward. It calls for introspection, urging individuals to examine their inner motives and thoughts for genuine spiritual growth and ethical behavior. Consider a scenario where someone volunteers at a charity but harbors negative feelings towards those they serve. Despite their outward acts of kindness, their heart’s condition reveals a deeper issue. This anecdote serves as a poignant reminder that true righteousness and purity stem from a heart aligned with God’s will.
In conclusion, the passage highlights the significance of heart purity over external rituals. It prompts readers to seek transformation through prayer, reflection, and aligning their desires with God’s teachings. Let us heed the call to action to guard our hearts diligently, allowing our words and actions to reflect a heart transformed by God’s love. May we strive for inner purity and authenticity, recognizing that true spiritual and moral growth begins within.
What defiles a person and comes from the heart?
According to the verse in Matthew 15:18-20, what defiles a person and comes from the heart are evil thoughts, murder, adultery, sexual immorality, theft, false testimony, and slander. These sins are said to come from within a person’s heart and are what truly defile them in the eyes of God. Jesus emphasizes the importance of purity not just in outward actions, but also in the intentions and condition of one’s heart in this passage. Jesus is teaching that true righteousness involves more than just adhering to external rules and regulations by highlighting that defilement comes from within. It is a matter of the heart and the inward attitudes and motivations of an individual. This underscores the need for inner transformation and a focus on cultivating virtues such as love, kindness, and compassion rather than giving in to sinful desires and negative thoughts. Our actions and behaviors are ultimately a reflection of what is in our hearts. It emphasizes the importance of integrity, authenticity, and a genuine commitment to following God’s will from the depths of our being. Jesus calls us to strive for a purity of heart that aligns with the values of the kingdom of God by addressing the root cause of defilement.
Application
Think about your daily grind, the hustle and bustle of work and family. Jesus’ words in Matthew 15:18-20 remind us that our actions reflect what’s inside our hearts. Isn’t it crucial to guard our hearts, aligning them with what truly matters? Take just a moment to examine your thoughts and motives. Are they pure? Are they aligned with love and righteousness? What steps will you take today to nurture a heart that mirrors God’s compassion and truth?
Reverend Michael Johnson is an experienced Church Minister with a profound expertise in spirituality and guidance. With a serene presence and a compassionate heart, he has faithfully served his congregation for over 20 years, leading them on a spiritual journey towards inner peace and enlightenment. Reverend Johnson’s extensive knowledge of religious philosophies and profound understanding of human nature have made him a trusted confidant and mentor to many, as he seamlessly weaves his profound wisdom into life teachings. Reverend Johnson’s calming demeanor and empathetic nature continue to uplift and heal souls, nurturing a sense of unity and tranquility within his community.
