'Zealous' in the Bible

When they heard about it, they praised God and told him, "You see, brother, how many tens of thousands of believers there are among the Jews, and all of them are zealous for the Law.

"I am a Jew, born in Tarsus in Cilicia but raised in this city and educated at the feet of Gamaliel in the strict ways of our ancestral Law. I am as zealous for God as all of you are today.

I advanced in Judaism beyond many of my contemporaries, because I was far more zealous for the traditions of my ancestors.