### Core Meaning & Semantic Range
The Greek word **καθαρίζω (katharízō)**, represented by `{{G2511}}`, is derived from καθαρός and means **to cleanse**, either literally or figuratively. It appears **37 times** across **29 unique verses** in the Bible. This term is foundational to understanding biblical concepts of physical healing, ceremonial purification, and spiritual renewal from sin.
### Biblical Occurrences & Contextual Analysis
In the biblical narrative, `{{G2511}}` is used in several key contexts. It most frequently describes the physical healing of leprosy, as when a leper asks Jesus, "thou canst **make** me **clean**" [[Matthew 8:2]], and Jesus responds, "**be thou clean**" [[Matthew 8:3]]. This act is presented as a sign of Jesus' authority [[Matthew 11:5]]. Figuratively, the term describes spiritual and moral purification. The apostle John writes that the blood of Jesus **cleanseth** us from all sin [[1 John 1:7]], and James exhorts believers to "**Cleanse** your hands" [[James 4:8]]. The word is also used to abolish ceremonial distinctions, as when God tells Peter, "What God hath **cleansed**, that call not thou common" [[Acts 10:15]].
### Related Words & Concepts
Several related words expand upon the concept of cleansing and purity:
* `{{G2513}}` **katharós** (clean, clear, pure): This is the root word describing the state achieved through cleansing. Jesus instructs the Pharisees to first **cleanse** `{{G2511}}` what is inside the cup, so that the outside may be **clean** `{{G2513}}` also [[Matthew 23:26]].
* `{{G37}}` **hagiázō** (to make holy, purify or consecrate): This term is often linked with `{{G2511}}` to show the connection between purity and holiness. Christ's purpose for the church is that He might **sanctify** `{{G37}}` and **cleanse** `{{G2511}}` it [[Ephesians 5:26]].
* `{{G48}}` **hagnízō** (to make clean, sanctify): This word is used in parallel to describe the process of purification. In a call to repentance, believers are told to **cleanse** `{{G2511}}` their hands and **purify** `{{G48}}` their hearts [[James 4:8]].
* `{{G2840}}` **koinóō** (to make or consider profane): This term serves as a direct contrast to `{{G2511}}`. God's command to Peter highlights that what God has **cleansed** `{{G2511}}` should no longer be considered **common** or defiled `{{G2840}}` [[Acts 10:15]].
### Theological Significance
The theological weight of `{{G2511}}` is immense. It illustrates the progression from physical and ceremonial purity to internal, spiritual transformation.
* **Atoning Work of Christ:** The ultimate act of cleansing comes from Christ. His blood **purges** the conscience from dead works [[Hebrews 9:14]], and He gave himself to **purify** for himself a people [[Titus 2:14]].
* **The Role of Faith and Confession:** Purification is linked to the believer's response. Hearts are **purified** by faith [[Acts 15:9]], and when we confess our sins, God is faithful to forgive and to **cleanse** us from all unrighteousness [[1 John 1:9]].
* **Holiness as the Goal:** The process of being cleansed is part of a larger goal of becoming holy. Believers are called to **cleanse** themselves from all filthiness of the flesh and spirit, "perfecting holiness in the fear of God" [[2 Corinthians 7:1]].
### Summary
In summary, `{{G2511}}` is far more than a simple word for washing. It is a cornerstone of biblical theology, signifying the power of God to restore and renew. It moves from the literal healing of disease to the profound spiritual **cleansing** of the human heart and conscience, a transformation made possible only through the work of Jesus Christ.
TRV