Kinds of Conscience

Weak

1 Corinthians 8:7

But not everyone knows this. Some people are still so accustomed to idols that when they eat such food they think of it as having been sacrificed to an idol, and since their conscience is weak, it is defiled.

1 Corinthians 8:10

For if anyone with a weak conscience sees you who have this knowledge eating in an idol's temple, won't he be emboldened to eat what has been sacrificed to idols?

1 Corinthians 8:12

When you sin against your brothers in this way and wound their weak conscience, you sin against Christ.

Defiled

Titus 1:15

To the pure, all things are pure, but to those who are corrupted and do not believe, nothing is pure. In fact, both their minds and consciences are corrupted.

Witnessing

Romans 2:12-15

12 All who sin apart from the law will also perish apart from the law, and all who sin under the law will be judged by the law.

13 For it is not those who hear the law who are righteous in God's sight, but it is those who obey the law who will be declared righteous.

14  (Indeed, when Gentiles, who do not have the law, do by nature things required by the law, they are a law for themselves, even though they do not have the law,

15 since they show that the requirements of the law are written on their hearts, their consciences also bearing witness, and their thoughts now accusing, now even defending them.)

Romans 9:1

I speak the truth in Christ—I am not lying, my conscience confirms it in the Holy Spirit—