noun · masculine
isaak
Strong’sG2464
Isaac
stem isaak-20 times in the New Testamentin 8 of 27 books4 of 10 forms occur
What it means
A plain-English reading of the word, with the lexicons it draws on — Abbott-Smith, Strong's, and Liddell-Scott-Jones — right below it, in full.
AI Summary
Isaac, the personal name of the son of Abraham 1234. The Greek form transliterates the Hebrew name 13, and appears as an indeclinable noun in the New Testament 13.
Sources: 1 Abbott-Smith 2 Strong's 3 LSJ 4 Dodson. Condensed by anthropic/claude-sonnet-5 on 2026-09-23 — it may still misstate what these say; check them yourself if it matters to you.
The lexicons it was drawn from, in full:
Abbott-Smith — the 1922 lexicon entry, in full
Strong’s G2464 — the 1890 definition, and where the word comes from
Saidee-sah-ak'
Isaac (i.e. Jitschak), the son of Abraham
Fromof Hebrew origin ();
King JamesIsaac.
James Strong, Exhaustive Concordance of the Bible, 1890 — public domain. The numbers in it link to the entries here.
Liddell-Scott-Jones — the classical dictionary this word appears in
(in MSS. sometimes -σάκ; cf. Deiss., BS, 189; Thack., Gr., 100), ὁ
indecl.
(in FlJ, Ἴσακος, -ου), (Heb. יִצְחָק),
Isaac (
(From Abbott-Smith. LSJ has no entry)
H. G. Liddell, R. Scott, H. S. Jones, A Greek-English Lexicon (9th ed., 1925–1940) — digitised by the Perseus Digital Library and corrected and expanded by Tyndale House, Cambridge, via STEPBible-Data's TFLSJ table, CC BY 4.0. Covers all of Greek literature, not just the Bible.
Translated as
Every occurrence, sorted by the English it was actually given — the evidence for what the word means, not a gloss of it.
Berean Standard Bible (BSB), dedicated to the public domain — berean.bible.
Biblang forms
Every form this word takes in Biblang, with the Greek it corresponds to and how often the New Testament uses it.
| Job in the sentence case | one singular | more than one plural |
|---|---|---|
| subject nominative | isaak3×Ἰσαὰκ | isaak |
| object accusative | isaak6×Ἰσαὰκ | isaak |
| direct address vocative | isaak | isaak |
| of, belonging to genitive | isaak9×Ἰσαὰκ | isaak |
| to, for dative | isaak2×Ἰσαὰκ | isaak |
Tinted cells are forms the New Testament never uses, so there is no Greek to show against them — but they are still correct Biblang, built from the slots below like any other.
Why these forms, and no others — the slots that make them
same in every form varies — every value shown
Where it appears
Every verse the word appears in, filed under the form it takes there.
20 occurrences, every one of them listed
isaak“Isaac”subjectnominative singular3×
Matthew 1:2Abraam gennata ton Isaak, Isaak de gennata ton Iakōb, Iakōb de …Abraham was the father of Isaac, Isaac the father of Jacob, and Jacob …
Acts 7:8… auton ta hēmera ta ogdoa, kai Isaak ton Iakōb, kai Iakōb toin dōdeka …… him on the eighth day. And Isaac became the father of Jacob, and …
Hebrews 11:20Pistia kai peri mellarōnteiu eulogata Isaak ton Iakōb kai ton Ēsau.By faith Isaac blessed Jacob and Esau concerning the …
isaak“Isaac”objectaccusative singular6×
Matthew 1:2Abraam gennata ton Isaak, Isaak de gennata ton Iakōb, Iakōb …Abraham was the father of Isaac, Isaac the father of Jacob, and …
Luke 13:28… toiu odontoiu, hotan horeveia Abraam kai Isaak kai Iakōb kai pantoin toin profētoin …… of teeth when you see Abraham, Isaac, Jacob, and all the prophets in …
Acts 7:8… diathēkan peritomau; kai houtōs gennata ton Isaak kai peritemata auton ta hēmera ta …… and Abraham became the father of Isaac and circumcised him on the eighth …
Galatians 4:28vis de, adelfoir, kata Isaak epangeliau tekneim avō;Now you, brothers, like Isaac, are children of promise.
Hebrews 11:17Pistia prosferatē Abraam ton Isaak peirazorōntos, kai ton monogenon prosferate tos …… when he was tested, offered up Isaac on the altar. He who had …
James 2:21… nu ouk ek ergeiu dikaiita, anaferarantos Isaak ton huion autou epi tem thusiastēriem?… did when he offered his son Isaac on the altar?
isaak“Isaac”of, belonging togenitive singular9×
Matthew 8:11… hēkali kai anaklinili meta Abraam kai Isaak kai Iakōb en ta basileia toiu …… to share the banquet with Abraham, Isaac, and Jacob in the kingdom of …
Matthew 22:32… tos theos Abraam kai tos theos Isaak kai tos theos Iakōb? ouk atō …… God of Abraham, the God of Isaac, and the God of Jacob’? He …
Mark 12:26… tos theos Abraam kai tos theos Isaak kai tos theos Iakōb?… God of Abraham, the God of Isaac, and the God of Jacob’?
Luke 3:34tou Iakōb tou Isaak tou Abraam tou Thara tou Nachōr… son of Jacob, the son of Isaac, the son of Abraham, the son …
Luke 20:37… kurion ton theon Abraam kai theon Isaak kai theon Iakōb;… God of Abraham, the God of Isaac, and the God of Jacob.’
Acts 3:13tos theos Abraam kai Isaak kai Iakōb, tos theos toiu patroiu …The God of Abraham, Isaac, and Jacob, the God of our …
Acts 7:32… patroiu su, tos theos Abraam kai Isaak kai Iakōb. entromos de generantos Mōusos …… your fathers, the God of Abraham, Isaac, and Jacob.’ Moses trembled with fear …
Romans 9:10… kai Rebekkas ek henou koitan echarōntas, Isaak tou patrou nu;… conceived by one man, our father Isaac.
Hebrews 11:9… hōs allotrian, en skēnai katoikarantos meta Isaak kai Iakōb toiu sunklēronomoiu tau epangeliau …… He lived in tents, as did Isaac and Jacob, who were heirs with …
isaak“Isaac”to, fordative singular2×
Romans 9:7… spermem Abraam, pantois tekneim, alla; En Isaak kaliti si spermem.… his children. On the contrary, “Through Isaac your offspring will be reckoned.”
Hebrews 11:18pros hon lalita hoti En Isaak kaliti si spermem,… God had said to him, “Through Isaac your offspring will be reckoned.”