'Conscientious' in the Bible

However, since there were not enough priests, they weren’t able to skin all the burnt offerings, so their Levite brothers helped them until the work was finished and until the priests consecrated themselves. For the Levites were more conscientious to consecrate themselves than the priests were.

“Also the foreigners who join themselves to the Lord,To minister to Him, and to love the name of the Lord,To be His servants, everyone who keeps the Sabbath without profaning itAnd holds fast to My covenant [by conscientious obedience];

As it is written and forever remains written,“There is none righteous [none that meets God’s standard], not even one.

For if someone sees you, a person having knowledge, eating in an idol’s temple, then if he is weak, will he not be encouraged to eat things sacrificed to idols [and violate his own convictions]?

[Regarding meat offered to idols:] Eat anything that is sold in the meat market without asking any questions for the sake of your conscience,

If one of the unbelievers invites you [to a meal at his home] and you want to go, eat whatever is served to you without asking questions [about its source] for the sake of your conscience.

Pay close attention to your life and your teaching; persevere in these things, for by doing this you will save both yourself and your hearers.

Little children (believers, dear ones), do not let anyone lead you astray. The one who practices righteousness [the one who strives to live a consistently honorable life—in private as well as in public—and to conform to God’s precepts] is righteous, just as He is righteous.