Skip to content
G5063

τεσσαρακονταετής

tessarakontaetḗs /tes-sar-ak-on-tah-et-ace'/ Ask about this word
from τεσσαράκοντα and ἔτος
of forty years of age
(+ full, of) forty years (old).

Word Study

In depth

A plain-language study of tessarakontaetḗs — 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 tessarakontaetḗs, represented by G5063, specifically denotes a period or age of forty years. A compound word derived from terms for "forty" and "year," it appears only 2 times in 2 unique verses. While rare, its use marks significant, extended periods of time in the biblical narrative.

Biblical Occurrences & Contextual Analysis

The two instances of G5063 in scripture point to pivotal moments of testing and transition. In Acts 13:18, the term is used to describe the forty years that God endured the manners of his people while they were in the wilderness. Later, in Acts 7:23, it marks a key turning point in the life of Moses, specifying that when he was a full forty years old, he was moved to visit his brethren, the children of Israel.

Related Words & Concepts

Several related words help clarify the context of this forty-year timeframe:

  • G5550 chrónos (a space of time): This general term for time is used in conjunction with G5063 in Acts 13:18 to define "the time of forty years," establishing a specific interval for the events in the wilderness.
  • G4137 plēróō (to make replete, finish): This word is used in Acts 7:23 to state that Moses was "full forty years old," emphasizing the completion of this distinct period in his life before his new purpose began.
  • G80 adelphós (a brother): This term is crucial to understanding the narrative in Acts 7:23, as it identifies the people Moses chose to visit at the forty-year mark of his life as his brethren.
  • G2474 Israḗl (Israel, the descendants of Jacob): Both occurrences of the forty-year period are directly linked to the history of the people of Israel, whether it is the nation in the wilderness Acts 13:18 or Moses identifying with the children of Israel Acts 7:23.

Theological Significance

The theological weight of G5063 is tied to the concept of divinely appointed timeframes for trial and preparation.

  • A Period of Endurance: The forty-year period in the wilderness was a time of testing for the people of Israel, during which God "suffered their manners" Acts 13:18.
  • A Marker of Transition: For Moses, reaching the age of forty years signifies a moment of personal revelation and a decisive shift in identity, as he acts on the desire to visit his brethren Acts 7:23.
  • A Completed Phase: The use of G4137 plēróō ("full") in describing Moses's age underscores that this forty-year span was a specific and completed phase, necessary before the next stage of his life and ministry could begin.

Summary

In summary, tessarakontaetḗs G5063 is more than just a number; it is a specific chronological marker used to frame significant periods in the history of Israel and its leaders. Though used only twice, it highlights periods of forty years as times of divine purpose, whether for national trial in the wilderness or for personal preparation and a pivotal change in a leader's life.

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 2 occurrences, inflected in 2 grammatical forms — each row is one form, and the bar is how often it is that form.

  • Accusative Singular Masculine
  • Nominative Singular Masculine
Nominative
The subject of the verb.
Accusative
The direct object of the verb.
Singular
One.
Masculine
Masculine 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

2 verses, all in Acts — and none of the other 26 New Testament books.

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.