King James Version

What Does Genesis 21:5 Mean?

Genesis 21:5 in the King James Version says “And Abraham was an hundred years old, when his son Isaac was born unto him.” — study this verse from Genesis chapter 21 with commentary, cross-references, and original Hebrew word analysis.

“And Abraham was an hundred years old, when his son Isaac was born unto him.”

Genesis 21:5 · KJV

Context

3

And Abraham called the name of his son that was born unto him, whom Sarah bare to him, Isaac.

4

And Abraham circumcised his son Isaac being eight days old, as God had commanded him.

5

And Abraham was an hundred years old, when his son Isaac was born unto him.

6

And Sarah said, God hath made me to laugh, so that all that hear will laugh with me.

7

And she said, Who would have said unto Abraham, that Sarah should have given children suck? for I have born him a son in his old age.

Read Genesis 21 full chapter

Commentary

KJV Study Commentary
And Abraham was an hundred years old, when his son Isaac was born unto him.... This passage is part of the Abrahamic narratives which shift from universal human history to God's particular covenant people. The Abraham cycle (Genesis 12-25) demonstrates God's sovereign election, covenant faithfulness, and the development of faith through testing and promise fulfillment.

Central themes include God's unconditional covenant promises (land, descendants, blessing to nations), the call to faith and obedience, the testing of faith through delays and impossibilities, the contrast between divine promises and human schemes, and God's gracious persistence despite human failures. Abraham emerges as the father of faith whose trust in God's promises becomes the model for all believers (Romans 4, Galatians 3, Hebrews 11).

Theologically, these narratives establish: (1) salvation by grace through faith rather than works; (2) covenant as God's gracious initiative binding Himself to His people; (3) the necessity of patient trust when promises seem impossible; (4) the consequences of attempting to fulfill God's promises through human effort; (5) the pattern of divine testing producing mature faith. The Abraham cycle foreshadows Christ as the ultimate seed through whom blessing extends to all nations (Galatians 3:16).

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Historical & Cultural Context

The patriarchal narratives (Genesis 12-50) reflect the cultural, social, and legal customs of the ancient Near East during the Middle Bronze Age (2000-1500 BCE). Archaeological discoveries including the Mari tablets, Nuzi tablets, and Egyptian records confirm many details: nomadic pastoralism, covenant-making ceremonies, marriage customs, property laws, and international travel patterns described in Genesis.

The cultural practices reflected include: treaty/covenant forms (Genesis 15), bride-price customs (Genesis 24, 29), inheritance laws favoring firstborn sons (Genesis 25, 27), adoption practices (Genesis 15, 30), levirate-type arrangements (Genesis 38), and Egyptian administrative systems (Genesis 41, 47). These parallels confirm Genesis's historical reliability while showing how God worked within ancient cultural frameworks to accomplish His purposes.

For later Israelites, these narratives established their identity as Abraham's descendants, explained their claim to Canaan, justified their possession of Joseph's bones (Exodus 13:19), and provided models of faith despite imperfection. The patriarchs' failures and God's faithfulness encouraged Israel that covenant relationship depended on God's grace rather than human merit. The movement from Mesopotamia to Canaan to Egypt set the stage for the Exodus and conquest narratives.

Reflection Questions

  1. What theological truths about Isaac's Birth emerge from this passage?
  2. How does this passage challenge modern cultural assumptions about identity, purpose, or morality?
  3. In what ways does this narrative foreshadow or typify aspects of Christ's redemptive work?

Original Language Analysis

Hebrew · 9 words
וְאַבְרָהָ֖ם1 of 9

“And Abraham”

H85

abraham, the later name of abram

בְּנֽוֹ׃2 of 9

“old”

H1121

a son (as a builder of the family name), in the widest sense (of literal and figurative relationship, including grandson, subject, nation, quality or

מְאַ֣ת3 of 9

“was an hundred”

H3967

a hundred; also as a multiplicative and a fraction

שָׁנָ֑ה4 of 9

“years”

H8141

a year (as a revolution of time)

בְּהִוָּ֣לֶד5 of 9

“was born”

H3205

to bear young; causatively, to beget; medically, to act as midwife; specifically, to show lineage

ל֔וֹ6 of 9
H0
אֵ֖ת7 of 9
H853

properly, self (but generally used to point out more definitely the object of a verb or preposition, even or namely)

יִצְחָ֥ק8 of 9

“Isaac”

H3327

jitschak (or isaac), son of abraham

בְּנֽוֹ׃9 of 9

“old”

H1121

a son (as a builder of the family name), in the widest sense (of literal and figurative relationship, including grandson, subject, nation, quality or

Study Guide

Historical Context

This verse is found in the book of Genesis. Understanding the historical and cultural background helps illuminate its meaning for the original audience and for us today.

Theological Significance

Genesis 21:5 contributes to our understanding of God's character and His relationship with humanity. Consider how this verse connects to the broader themes of Scripture.

Cross-References

Verses related to Genesis 21:5 from Treasury of Scripture Knowledge

Genesis 17:17Romans 4:19Genesis 17:1

Test Your Knowledge

Genesis 21 QuizTest your knowledge of this chapterGenesis Book QuizComprehensive quiz for the entire book

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