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G4550

σαπρός

saprós /sap-ros'/ Ask about this word
from σήπω
rotten, i.e. worthless (literally or morally)
bad, corrupt. Compare πονηρός.

Word Study

In depth

A plain-language study of saprós — the range of meaning it carries, how Scripture actually uses it, and where it points. Written for readers who don’t know the original language.

Core Meaning & Semantic Range

The Greek word saprós, represented by G4550, refers to that which is rotten, worthless, or corrupt. It appears 9 times across 6 unique verses. The term describes something that has degenerated from its original state, becoming bad or useless, and is applied in both a literal and a moral sense.

Biblical Occurrences & Contextual Analysis

In scripture, G4550 is used to illustrate a clear distinction between good and bad. It is frequently used in agricultural metaphors, such as a corrupt tree that cannot bring forth good fruit Matthew 7:17. A tree is known by its fruit, and a corrupt tree produces corrupt fruit Matthew 12:33. This concept is extended to human behavior, particularly speech, where believers are warned to let no corrupt communication proceed from their mouths Ephesians 4:29. The term is also used in the parable of the net, where the bad fish are gathered and cast away, signifying a process of separation and judgment Matthew 13:48.

Related Words & Concepts

Several related words help clarify the meaning of G4550:

  • G18 agathós ("good"): Often used as a direct contrast to what is corrupt. It describes something that is intrinsically good and beneficial, such as the good works believers are created in Christ to do Ephesians 2:10.
  • G2570 kalós (good, honest, fair): This term denotes something that is valuable or beautiful in its use or appearance. It is set in opposition to G4550 in contexts like a good tree producing good fruit Luke 6:43 or the good fish being kept Matthew 13:48.
  • G4190 ponērós (evil, wicked): This word describes what is hurtful in effect or influence. A corrupt G4550 tree is said to bring forth evil G4190 fruit, linking the idea of worthlessness to harmfulness Matthew 7:17.

Theological Significance

The theological weight of G4550 is significant, highlighting key spiritual principles:

  • The Inevitable Link between Source and Outcome: The repeated metaphor of the tree and its fruit establishes that a corrupt source cannot produce a good result. A person's inner nature dictates their outward actions, just as a corrupt tree yields evil fruit Matthew 7:17-18.
  • The Standard for Communication: The use of G4550 in Ephesians 4:29 sets a clear standard for speech. Corrupt communication, which is worthless and destructive, is contrasted with words that are good for edifying and ministering grace to the hearers.
  • The Principle of Divine Separation: In the parable of the net, G4550 describes the bad fish that are sorted out and discarded Matthew 13:48. This illustrates a theme of final judgment, where what is deemed worthless will be separated from what is valuable.

Summary

In summary, G4550 moves beyond a simple definition of 'rotten' to serve as a powerful spiritual diagnostic tool. It is applied to both literal objects like trees and fish and moral realities like communication. The word consistently illustrates the biblical principle that a corrupt internal state will inevitably produce worthless or harmful external results, whether as bad fruit, destructive words, or a character unfit for God's kingdom.

How the KJV Renders It

Translation

Strong’s lists the renderings but not their weight. These are counted from the King James text of the tagged verses — the bar under each is how often the translators actually reached for it. Select one to filter the occurrences below.

Grammatical Forms

Morphology

In the Greek New Testament, this word appears as an adjective across 8 occurrences, inflected in 5 grammatical forms — each row is one form, and the bar is how often it is that form.

  • Nominative Singular Neuter
  • Accusative Singular Masculine
  • Accusative Plural Neuter
  • Accusative Singular Neuter
  • Nominative Singular Masculine
Nominative
The subject of the verb.
Accusative
The direct object of the verb.
Singular
One.
Plural
More than one.
Masculine
Masculine grammatical gender.
Neuter
Neuter grammatical gender.

Related Words

Related

Other entries the study above points to — each one is drawn from a reference it makes. Follow the trail to see how the words connect.

Theographic Context

Context

The people, places, and span of history the verses containing this word touch on — drawn from the theographic tagging of Scripture. Select any name to isolate its verses in the occurrence list.

Biblical Distribution

Distribution

Appears in 6 verses across 3 of the 27 books. Most frequent in Matthew (4 verses); never once in the other 24.

4
Matthew
1
Luke
1
Ephesians

Every Occurrence

Concordance

Every verse where the word is tagged in the King James text. Filter by book, by the English word the translators chose, or search within the verses.

Sources. Definition and numbering: James Strong, Exhaustive Concordance of the Bible (1890). Morphology: STEPBible / Tyndale House (CC BY). Verse tagging: the King James text keyed to Strong’s numbers. Every count on this page is computed from the tagged corpus, not estimated.