A Dictionary of the Book of Mormon/Zerahemnah
ZERAHEMNAH. A Lamanite general, who commanded the forces of that people, who, at the request of the apostate Zoramites occupied Antionum with the intention of attacking the Ammonites in the land of Jershon. Like most of the commanding officers of the Lamanite armies of that age, he was a Nephite dissenter (B. C. 74.)
Zerahemnah, finding that Moroni, the Nephite commander was too well prepared for their attack on the land of Jershon, retired through Antionum into the wilderness, where they changed direction and marched towards the head-waters of the river Sidon, with the intention of taking possession of the land of Manti. But Moroni was too vigilant to allow his enemies to slip away without knowing what had become of them. He had his spies watch the movements of Zerahemnah's forces, and in the meanwhile sent to Alma to inquire the mind and will of the Lord with regard to his future course. The word of the Lord was given to Alma, and he informed Moroni's messengers of the movements of the Lamanites. The young general, with becoming prudence, then divided his army. One corps he left to protect Jershon, and with the remainder he advanced by rapid marches towards Manti, by the most direct route. On his arrival he at once mustered all the men who could bear arms into his forces, to help in the defense of their liberties against the advancing foe. So rapid had been his movements and so prompt had been the response to his call that when the Lamanites reached the neighborhood of the Sidon he was prepared for their coming.
The battle which was fought when the opposing armies met was one of the most stubborn and bloody in Nephite history. Never from the beginning had the Lamanites been known to fight with such exceeding great strength and courage. Time after time their hosts rushed upon the well-ordered ranks of the Nephites, and notwithstanding the latter's armor they clove in their heads and cut off their arms. But the cost of these charges to their own numbers was terrible. The battle began at a hill called Riplah, and afterwards extended to both banks of the Sidon. At one time a lull took place in the carnage, and Moroni, who had no pleasure in shedding blood, made an offer of such terms of surrender as he considered the circumstances warranted. But Zerahemnah and other captains of the Lamanite hosts rejected the offer and urged their warriors to renewed resistance. So the battle recommenced with unabated fury. At last, however, Zerahemnah himself, to prevent the total annihilation of his armies, concented to the proposed terms of surrender and entered into the required covenant of peace. So great were the losses on both sides that the dead were not counted. After this fearful battle, we read no more of Zerahemnah.