Words that Contaminate

The account of Miriam, Moshe’s sister, offers us one of the most solemn lessons in the Scriptures regarding the power of our words. We often minimize the impact of a casual comment, a complaint, or an opinion about someone else’s life. However, the episode in Numbers 12 reveals that, in the eyes of Yehovah, murmuring is not a minor sin; it is a destructive spiritual affliction with visible and profound consequences.

Below, we develop this theme by focusing on the problem of criticism, its implications, and its urgent application for our days.

The Root of the Problem: Lashón Hará (The Evil Tongue)

The foundational text clarifies that tzara’at—mistakenly translated in many versions as leprosy—was not a simple contagious medical condition, but rather the physical manifestation of a spiritual crisis. The sages of Y’hudah have always linked this condition directly to the sins of the tongue, grouped under the Hebrew term lashón hará.

Miriam and Aharon spoke against Moshe, using his marriage to a Cushite woman as a pretext. However, the biblical text reveals that the true underlying cause was pride and the questioning of the spiritual authority that Yehováh had granted to their brother:

“Has Yehovah spoken only through Moshe? Has He not spoken through us also?” And Yehovah heard it.

Numbers 12:2

Criticism almost never arises from a genuine desire to correct, but rather from a heart that seeks to elevate itself by lowering its neighbor. Miriam, a respected prophetess and leader in Israel, fell into the trap of murmuring, demonstrating that no one is exempt from this danger if they neglect to guard their mouth.

The Terrible Consequences of Criticism

The divine judgment regarding Miriam’s murmuring was immediate and drastic, revealing three main consequences that criticism brings:

• The loss of the divine presence: The Scriptures narrate that when the anger of Yehovah was aroused, the cloud representing His Presence departed from the Tabernacle. Immediately afterward, Miriam became covered in tzara’at, white as snow (Numbers 12:9-10). Murmuring drives away communion with the Father.

• Exclusion and shame: By divine command, Miriam had to be expelled from the camp and remain isolated for seven days (Numbers 12:14). Gossip and criticism tear the social fabric; they separate friends and isolate the one who practices them, destroying community trust.

• The stagnation of the people: The account points out a very significant detail: “And the people did not journey on until Miriam was brought in again.” (Numbers 12:15). The criticism of a single person or a small group has the power to halt the spiritual progress of an entire community. As long as there is murmuring in the midst of the people, the journey toward the Father’s promises stops.

Application to the Present: The Invisible Epidemic

Today, we no longer see people physically covered in tzara’at after passing judgment, which has caused us to lose our fear of this sin. However, modern tzara’at is invisible but equally devastating.

We live in a hyper-connected culture where criticism has been democratized. Through social media, text messages, or casual conversations, lashón hará spreads at the speed of a click. We judge governors, ministries, family decisions, physical defects, or the downfalls of our brothers with an alarming lightheartedness.

We frequently forget the severe warning of the Scriptures regarding the power of what we speak:

Death and life are in the power of the tongue, and those who love it will eat its fruit.

Proverbs 18:21

When we criticize, we manifest a profound spiritual blindness. We become judges of others while forgetting our own condition. As the prophet Isaías reminds us, before the holiness of the Creator, no one can boast of their own righteousness:

But we are all like an unclean thing, and all our righteousnesses are like filthy rags; we all fade as a leaf, and our iniquities, like the wind, have taken us away. (Isaías 64:6)

The Purpose of Isolation and the Path to Healing

The foundational text highlights a crucial point: Miriam’s confinement was not just a punishment, but an opportunity. Those seven days of forced solitude outside the camp served for her to reflect, evaluate her words, and refocus her relationship with Yehovah and her neighbor.

We should not wait for a crisis, an illness, or an extreme circumstance (a modern tzara’at) to force us to stop. We need to voluntarily seek moments of quietness and isolation with our Father to examine the state of our hearts. This is not about becoming hermits—since Proverbs 18:1 warns that an isolated man seeks his own desire—but about seeking intimacy with the Creator to be cleansed of all bitterness.

If, upon examining ourselves, we discover that our tongue has been contaminated by murmuring and criticism, the good news is that there is provision for total cleansing. Just as the leper approached in the gospels, recognizing his need, we can turn to the Mesías today:

“Lord, if You are willing, You can make me clean.” Then Yeshua put out His hand and touched him, saying, “I am willing; be cleansed.” Immediately his leprosy was cleansed.

Matthew 8:2-3

Restoration begins when we recognize that our criticisms toward others are, in reality, a reflection of our own need for internal healing. Let us put a restraint on our lips and allow love, mercy, and mutual edification to guide our words within the community.