Berean Study Bible
Beloved, although I made every effort to write to you about the salvation we share, I felt it necessary to write and urge you to contend earnestly for the faith entrusted once for all to the saints.

King James Bible
Beloved, when I gave all diligence to write unto you of the common salvation, it was needful for me to write unto you, and exhort you that ye should earnestly contend for the faith which was once delivered unto the saints.

American Standard Version
Beloved, while I was giving all diligence to write unto you of our common salvation, I was constrained to write unto you exhorting you to contend earnestly for the faith which was once for all delivered unto the saints.

Darby Bible Translation
Beloved, using all diligence to write to you of our common salvation, I have been obliged to write to you exhorting [you] to contend earnestly for the faith once delivered to the saints.

Douay-Rheims Bible
Dearly beloved, taking all care to write unto you concerning your common salvation, I was under a necessity to write unto you: to beseech you to contend earnestly for the faith once delivered to the saints.

English Revised Version
Beloved, while I was giving all diligence to write unto you of our common salvation, I was constrained to write unto you exhorting you to contend earnestly for the faith which was once for all delivered unto the saints.

Young's Literal Translation
Beloved, all diligence using to write to you concerning the common salvation, I had necessity to write to you, exhorting to agonize for the faith once delivered to the saints,