86 years old
Cited passages
Abram was eighty-six years old when Hagar bore Ishmael to Abram.
How old was Abraham when Ishmael was born?
- Numbers & measurements
- Numbers
- Old Testament vs. New Testament
- Genesis
- Acts
The tension
Genesis 16:16 says plainly that Abraham was 86 when Ishmael was born. But if you stack Gen 11:26 (Terah was 70 when Abram was born), Acts 7:4 (Abram left Haran only after Terah died), and Gen 11:32 (Terah died at 205), then Abram was at least 135 when he left Haran — which would make Ishmael's birth even later than that, not at 86.
Proposed answers
People have answered this in several ways; GEBible presents them as equal peers.
More than 135 years old
Abraham's father, Terah, was seventy years old when Abraham was born. And Terah lived seventy years, and begat Abram. Genesis 11:26 Abraham didn't leave Haran until Terah died. Our father Abraham ... dwelt in Haran: and from thence, when his father was dead, he removed himself into this land. Acts 7:2-4 And Terah died when he was 205. . And the days of Terah were two hundred and five years; and Terah died in Haran. Genesis 11:32 Sometime after leaving Haran (when Abraham was at least 135 years old), Ishmael was born. And he [Abraham] went in unto Hagar, and she conceived ... And Hagar bare Abram a son: and Abram called his son's name, which Hagar bare, Ishmael. Genesis 16:4-15
Cited passages
Terah lived seventy years, and became the father of Abram, Nahor, and Haran.
He said, “Brothers and fathers, listen. The God of glory appeared to our father Abraham when he was in Mesopotamia, before he lived in Haran, and said to him, ‘Get out of your land and away from your relatives, and come into a land which I will show you.’ Then he came out of the land of the Chaldaeans and lived in Haran. From there, when his father was dead, God moved him into this land, where you are now living.
The days of Terah were two hundred five years. Terah died in Haran.
He went in to Hagar, and she conceived. When she saw that she had conceived, her mistress was despised in her eyes. Sarai said to Abram, “This wrong is your fault. I gave my servant into your bosom, and when she saw that she had conceived, she despised me. May Yahweh judge between me and you.” But Abram said to Sarai, “Behold, your maid is in your hand. Do to her whatever is good in your eyes.” Sarai dealt harshly with her, and she fled from her face. Yahweh’s angel found her by a fountain of water in the wilderness, by the fountain on the way to Shur. He said, “Hagar, Sarai’s servant, where did you come from? Where are you going?” She said, “I am fleeing from the face of my mistress Sarai.” Yahweh’s angel said to her, “Return to your mistress, and submit yourself under her hands.” Yahweh’s angel said to her, “I will greatly multiply your offspring, that they will not be counted for multitude.” Yahweh’s angel said to her, “Behold, you are with child, and will bear a son. You shall call his name Ishmael, because Yahweh has heard your affliction. He will be like a wild donkey among men. His hand will be against every man, and every man’s hand against him. He will live opposed to all of his brothers.” She called the name of Yahweh who spoke to her, “You are a God who sees,” for she said, “Have I even stayed alive after seeing him?” Therefore the well was called Beer Lahai Roi. Behold, it is between Kadesh and Bered. Hagar bore a son for Abram. Abram called the name of his son, whom Hagar bore, Ishmael.
Examining the tension
What follows is one scholar’s way of reading this disagreement — a critical-historical view that often concludes the texts genuinely disagree. It draws on the peer-reviewed sources listed below and stands as one position among the answers above, presented for transparency, not as GEBible’s position.
How critical scholarship weighs this: Widely regarded as a genuine contradiction
This summarizes where critical scholarship tends to land on this tension — a report on the field’s center of gravity, not GEBible’s own ruling.
Genesis 16:16 states plainly that "Abram was fourscore and six years old, when Hagar bare Ishmael" — Abraham was 86. The contradiction is a downstream consequence of the Terah chronology problem (cf. the Terah-lifespan entry). If Genesis 11:26 means Abram was born when Terah was 70, and Acts 7:4 means Abram left Haran only after Terah's death at 205 (Gen 11:32), then Abram must have been at least 135 when he departed Haran — yet Genesis 12:4 fixes that departure at age 75, and Genesis 16:16 has Ishmael born at 86. The chronologies cannot all be true together: the Acts-plus-MT-Terah arithmetic forces Abram past 135 before he even leaves Haran, well after the 86 at which Genesis says Ishmael was born.
The harmonization is identical to the one used for the Terah problem: Bock and others argue that Genesis 11:26's "Terah lived seventy years, and begat Abram, Nahor, and Haran" means Terah began begetting at 70 and that Abram, listed first for prominence, was actually born when Terah was 130. On that reading Abram leaves Haran at 75 (Terah having just died at 205), and Genesis 16:16's 86 stands without difficulty. Internally consistent — *if* the premise about 11:26 is granted.
The objection is the same and it is decisive. The genealogical formula "X lived N years and begat Y" is used throughout Genesis 5 and 11:10-25 to state the father's age *at the birth of the named son*, because each notice then records the years lived afterward and sums to a total lifespan. Reading that formula as "age at first child, named son born sixty years later" only at 11:26 — and nowhere else in the same tightly structured series — is precisely the kind of selective, results-driven exegesis that defines an ad hoc fix. Westermann and Sarna both observe that the formula is uniform and that the irregularity at 11:26 (three sons named together, no individual birth-years) is a redactional artifact: Abram heads the list for theological reasons even if he was not the firstborn. Hamilton's NICOT, while sympathetic to a later birth-year for Abram, concedes the verse does not state it and that the inference must be supplied.
That the ancients themselves felt the strain is shown again by the Samaritan Pentateuch's reading of Terah's lifespan as 145 rather than 205 — an early corrective that removes the gap by killing Terah off in time for a 75-year-old Abram to leave Haran. Tov attributes such adjustments to the Samaritan text's systematic harmonizing. On the New Testament side, Acts 7:4 reflects a Hellenistic-Jewish tradition that placed Abram's departure after Terah's death; Philo articulates the same sequence (and indeed allegorizes a double migration, *De Migratione Abrahami* 177; *De Abrahamo* 62-88), showing the reading was current in first-century Judaism. Luke's Stephen takes the MT lifespan at face value and produces a chronology that collides with Genesis 16:16's straightforward 86. The harmonization rescues the numbers only by making Genesis 11:26 uniquely figurative in an otherwise literal arithmetic chain.
Where the critical reading lands: a genuine numerical contradiction parasitic on the Terah chronology; the apologetic fix is ad hoc, treating one formulaic verse against the grain of every parallel.
Sources for this reading