'Ardent' in the Bible

From the days of John the Baptist until now the kingdom of heaven suffers violent assault, and violent men seize it by force [as a precious prize].

“I am a Jew, born in Tarsus of Cilicia, but brought up in this city, educated at the feet of Gamaliel according to the strictness of the law of our fathers, being ardent and passionate for God just as all of you are today.