Matthew 15:15-20 is about Jesus teaching that true defilement comes from within, from one’s thoughts, intentions, and heart, rather than external actions or influences.
15 But Peter said to him, “Explain the parable to us.”
16 And he said, “Are you also still without understanding?
17 Do you not see that whatever goes into the mouth passes into the stomach and is expelled?
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 15:15-20
In Matthew chapter 15, we find Jesus and his disciples gathered together in a quiet garden on the outskirts of a bustling town. The disciples, including Peter, James, John, and the others, are seated around Jesus, eager to learn from his teachings. The sun is beginning to set, casting a warm golden glow over the group as they engage in deep conversation.
As they sit in a circle, Jesus begins to speak about the importance of inner purity and the true source of defilement. His words are filled with wisdom and compassion, drawing the disciples in closer as they hang on his every word. The disciples, who have spent countless hours with Jesus, are always amazed by his profound insights and the way he challenges their understanding of the scriptures.
The atmosphere is peaceful and serene, with the gentle rustling of leaves and the distant sounds of the town providing a soothing backdrop to their discussion. Jesus’ presence brings a sense of calm and reverence to the scene, as the disciples listen intently, their hearts open to receive the spiritual truths he imparts to them.
What is Matthew 15:15-20 about?
Imagine a beautiful garden, carefully tended and nurtured with love. Now, picture someone coming along and pouring poison into the soil. No matter how lovely the flowers may appear on the surface, they are tainted by the toxic substance underneath. Jesus is explaining that our inner thoughts and intentions are like the soil of the garden – they can either nurture or poison our actions and behaviors.
When we harbor negative thoughts like jealousy, hatred, or greed, they seep into every aspect of our lives, affecting not only our external actions but also our relationships with others and our own sense of self. Jesus is urging us to cultivate a pure and loving heart, free from harmful intentions, as this is the root of our actions and behaviors. A pure heart will bring forth goodness and kindness in our words and deeds, just as a healthy garden produces beautiful flowers.
So, let us reflect on our inner thoughts and intentions. Are they aligned with love, compassion, and empathy? Or are they tainted by negativity and harmful desires? True defilement comes not from external actions alone, but from the seeds of evil we allow to take root in our hearts.
Understanding what Matthew 15:15-20 really means
In Matthew 15:15-20, we find Jesus engaging in a profound dialogue with his disciples, delving into the essence of defilement and purity. This conversation unfolds within a broader discourse where Jesus confronts the Pharisees and the crowd, challenging their understanding of what truly defiles a person. Peter’s inquiry serves as a catalyst for Jesus to expound on the significance of inner purity as opposed to mere external rituals.
Jesus’ poignant words, “Out of the heart come evil thoughts, murder, adultery, sexual immorality, theft, false testimony, slander,” encapsulate a profound truth. He elucidates that sin emanates from within, originating in the depths of the heart and mind rather than being imposed from external influences. This assertion underscores the paramount importance of cultivating a pure heart and mind, for they are the wellsprings from which our actions and intentions flow.
Moreover, Jesus starkly contrasts the Pharisees’ preoccupation with external cleanliness, such as washing hands before meals, with the genuine source of defilement. He unequivocally states, “These are what defile a person; but eating with unwashed hands does not defile them.” This distinction underscores the primacy of moral and spiritual purity over superficial adherence to religious customs.
Drawing parallels from other biblical passages enriches our understanding of Jesus’ teachings. Proverbs 4:23 admonishes us to guard our hearts diligently, recognizing that all our actions stem from its depths. Jeremiah 17:9 further accentuates the inherent deceitfulness and sinfulness of the human heart, reinforcing Jesus’ assertion about the origin of defilement. Mark 7:20-23 echoes the sentiments expressed in Matthew, emphasizing that true defilement arises from within a person.
The relevance of this passage resonates strongly in contemporary society, where external appearances often overshadow inner authenticity. In a culture fixated on outward displays of religiosity or success, Jesus’ words serve as a poignant reminder to prioritize inner purity and moral integrity. This timeless message challenges us to embark on a journey of introspection, seeking to align our hearts with God’s will rather than being content with superficial displays of righteousness.
Consider the stark contrast between two individuals: one meticulously adheres to religious rituals but harbors negativity in their heart, while the other may not outwardly display religious fervor but exudes kindness and love from within. This anecdote vividly illustrates that true purity and defilement stem from the heart, transcending mere external actions. It prompts us to reflect on whether our outward expressions of faith truly mirror the condition of our hearts.
In conclusion, Jesus’ profound teachings in Matthew 15:15-20 beckon us to embark on a transformative journey of heart examination and alignment with God’s truth. True righteousness, as illuminated by Jesus, emanates from inner purity and authenticity rather than mere external observances. By nurturing a heart that reflects God’s love and righteousness, we can impact our surroundings profoundly, embodying the essence of true discipleship and spiritual vitality.
How can we guard our hearts from evil?
To guard our hearts from evil, we must understand that evil comes from within us, stemming from the thoughts and intentions of our hearts. We must be vigilant in examining our thoughts and motives, ensuring they align with righteousness and goodness. We can guard against the seeds of evil taking root within us by focusing on cultivating a pure heart and filling it with good and noble things.
Additionally, we can guard our hearts from evil by being mindful of the influences and inputs we allow into our lives. Surrounding ourselves with positive, uplifting content and distancing ourselves from negativity and immorality can help protect our hearts from being corrupted. We can strengthen our defenses against evil infiltrating our hearts by choosing to engage with sources that promote goodness and righteousness.
Lastly, we can guard our hearts from evil by seeking guidance and strength from God through prayer and studying His word. We can build a strong foundation for guarding our hearts against evil influences by immersing ourselves in the teachings of love, compassion, and virtue found in the Scriptures. Through a close relationship with God and a commitment to living according to His principles, we can fortify our hearts against the temptations and traps of evil.
Application
Let’s remember the power of our words, they’re a mirror of our hearts. Speak love, kindness, and goodness, let’s build up not tear down. Let’s nurture our hearts to bring light into the world, for our words have the power to shape our reality. How will you choose to speak today to positively impact your world?
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.
