Most beloved, taking all care to write to you about your common salvation, I found it necessary to write to you in order to beg you to contend earnestly for the faith that was handed down once to the saints
Other versions
King James Version
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.English Standard Version
Beloved, although I was very eager to write to you about our common salvation, I found it necessary to write appealing to you to contend for the faith that was once for all delivered to the saints.New International Version
Dear friends, although I was very eager to write to you about the salvation we share, I felt I had to write and urge you to contend for the faith that was once for all entrusted to the saints.