'Conscientious' in the Bible

But there were not enough priests to skin all the animals, so their brothers, the Levites, helped them until the work was finished and the priests could consecrate themselves. (The Levites had been more conscientious about consecrating themselves than the priests.)

Be conscientious about how you live and what you teach. Persevere in this, because by doing so you will save both yourself and those who listen to you.