They were zealous

1. Num. 25: 11, 13
     11 Phinehas, the son of Eleazar, the son of Aaron the priest, hath turned my wrath away from the children of Israel, while he was zealous for my sake among them, that I consumed not the children of Israel in my jealousy.
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     13 And he shall have it, and his seed after him, even the covenant of an everlasting priesthood; because he was zealous for his God, and made an atonement for the children of Israel.
2. Acts 22: 3
     3 I am verily a man which am a Jew, born in Tarsus, a city in Cilicia, yet brought up in this city at the feet of Gamaliel, and taught according to the perfect manner of the law of the fathers, and was zealous toward God, as ye all are this day.
3. Alma 21: 23
     23 And Ammon did preach unto the people of king Lamoni; and it came to pass that he did teach them all things concerning things pertaining to righteousness. And he did exhort them daily, with all diligence; and they gave heed unto his word, and they were zealous for keeping the commandments of God.
4. Alma 27: 30
     30 And thus they were a zealous and beloved people, a highly favored people of the Lord.
5. JS-H 1: 9
     9 My mind at times was greatly excited, the cry and tumult were so great and incessant. The Presbyterians were most decided against the Baptists and Methodists, and used all the powers of both reason and sophistry to prove their errors, or, at least, to make the people think they were in error. On the other hand, the Baptists and Methodists in their turn were equally zealous in endeavoring to establish their own tenets and disprove all others.