Alma 48:13

yea, and he was a man who was firm in the faith of Christ, and he had sworn with an oath, to defend his people, his rights, and his country, and his religion, even to the loss of his blood.

He was firm in his faith in Christ. He made a promise to defend his people, his rights, his country, and his religion. He would do this even if it meant he would die.

He was unwavering in his faith in Christ. He had taken an oath to defend his people, their rights, their country, and their religion—even if it cost him his life.