On Bible Gateway, you can enter book abbreviations into the search bar to save time when you search. Many books have more than one accepted abbreviation. You can follow the abbreviation with a chapter and/or verse reference specified (e.g. Ge 1, Gen 1, Ge 1:1, or Gen 1:1) to pull up your result. Below is a list of acceptable abbreviations for each book of the Bible.
Old Testament:
Genesis: Ge, Gen
Exodus: Ex, Exo, Exod
Leviticus: Lev
Numbers: Nu, Num
Deuteronomy: Deu, Deut
Joshua: Jos, Josh
Judges: Judg
Ruth: Ru, Rt
1 Samuel: I Sa, I Sam
2 Samuel: II Sa, II Sam
1 Kings: I Ki, I Kin
2 Kings: II Ki, II Kin
1 Chronicles: I Ch, I Chr
2 Chronicles: II Ch, II Chr
Ezra: Ezr
Nehemiah: Ne, Neh
Esther: Est, Esth
Job: Jo
Psalms: Ps, Psa
Proverbs: Pr, Pro, Prov
Ecclesiastes: Ec, Ecc, Eccl
Song of Songs: SS, Song
Isaiah: Is, Isa
Jeremiah: Jer, Jere
Lamentations: La, Lam
Ezekiel: Ez, Eze, Ezk
Daniel: Da, Dan
Hosea: Ho, Hos
Joel: Joe
Amos: Am, Amo
Obadiah: Ob, Oba
Jonah: Jon, Jona
Micah: Mi, Mic, Mica
Nahum: Na, Nah
Habakkuk: Hab
Zephaniah: Zep, Zph, Zeph
Haggai: Hag
Zechariah: Zch, Zech
Malachi: Mal
New Testament:
Matthew: Mat, Matt
Mark: Mar
Luke: Lu, Luk
John: Jn
Acts: Ac, Act
Romans: Ro, Rom, Roma
1 Corinthians: I Co, I Cor
2 Corinthians: II Co, II Cor
Galatians: Ga, Gal
Ephesians: Ep, Eph
Philippians: Phil, Phili
Colossians: Col
1 Thessalonians: I Th, I The
2 Thessalonians: II Th, II The
1 Timothy: I Ti, I Tim
2 Timothy: II Ti, II Tim
Titus: Ti, Tit
Philemon: Phm, Phile
Hebrews: He, Heb
James: Jam
1 Peter: I Pe, I Pet
2 Peter: II Pe, II Pet
1 John: I Jo, I Joh
2 John: II Jo, II Joh
3 John: III Jo, III Joh
Jude: Jud
Revelation: Re, Rev