1 Peter 3:16

May your conscience be able to so approve of your conduct that, even if you are ridiculed, those doing it will [eventually] have to be ashamed [of themselves] for criticizing your Christian behavior.

1 Peter 2:12

You should live such good lives before [unconverted] Gentiles, so that even though they accuse you of being evildoers, by seeing your good deeds, they will [be led to] honor God [for you] on the day He visits us again [i.e., to bring judgment].

Hebrews 13:18

Pray for us [continually]. We are convinced that we [i.e., the writer of Hebrews] have a clear conscience [i.e., regarding our relationship to you] and we want to behave properly in every way.

Matthew 5:11

You will be blessed when people speak against you and harm you and say bad things about you that are untrue, because of [your devotion to] me.

1 Timothy 1:5

But the goal of this instruction is [to] love [God and people] from a pure heart, a good conscience and a sincere faith.

1 Peter 2:15

For it is God's will that, by doing good, you should put to silence the ignorant [talk and actions] of foolish people.

1 Peter 2:19

For those of you who put up with such suffering unjustly, because of your close relationship to God, are to be commended.

1 Peter 3:21

This water prefigured immersion [into Christ], which now also saves you, not by removing dirt from the [physical] body, but [by serving] as an appeal [or, "pledge"] to God for a clear conscience through the raising of Jesus Christ from the dead.

Acts 24:16

So, for this reason I make every effort to have a clear conscience before God and men at all times.

Romans 9:1

I am telling [you] the truth in Christ [i.e., since I am a Christian]; I am not lying. My conscience, [confirmed] by the Holy Spirit, supports my statements [as true],

2 Corinthians 1:12

For this is what we boast of: Our conscience testifies that we have conducted ourselves in the world, and especially toward you, in holiness and godly sincerity, not with human wisdom, but with the favor of God.

2 Corinthians 4:2

Instead, we have renounced [the practice of] secret, disgraceful behavior. We do not practice deception, nor resort to distorting God's message. But, by making known the truth [i.e., the true message], we commend ourselves to everyone's conscience in the presence of God.

1 Timothy 1:19

holding on to [your] faith and a good conscience. Some people have rejected these things, resulting in the "shipwreck" of their faith [i.e., their spiritual life was ruined].

2 Timothy 1:3

I thank God, whom I worship [or, "serve"] with a clear conscience, as my forefathers did, that I can remember you [i.e., your commitment] continually in my prayers night and day.

Titus 2:8

and sound speech that cannot be condemned, so that the person who opposes [us] will have to be ashamed for not having anything bad to say about us.

Hebrews 9:14

how much more will the blood of Christ, who through the eternal Holy Spirit [or, His eternal Spirit] offered Himself without [moral] blemish to God, cleanse our consciences from deeds which lead to [spiritual] death to serve the living God?

1 Peter 3:1-2

In the same way [that Jesus was submissive], you wives should submit yourselves to your own husbands so that, even though they may not obey the [Gospel] message [they have heard] they may, without your talking [to them about it],

Treasury of Scripture Knowledge

Summary

Having a good conscience; that, whereas they speak evil of you, as of evildoers, they may be ashamed that falsely accuse your good conversation in Christ.

Falsely

General references

Bible References

Whereas

1 Peter 2:12
You should live such good lives before [unconverted] Gentiles, so that even though they accuse you of being evildoers, by seeing your good deeds, they will [be led to] honor God [for you] on the day He visits us again [i.e., to bring judgment].
Titus 2:8
and sound speech that cannot be condemned, so that the person who opposes [us] will have to be ashamed for not having anything bad to say about us.

Falsely

Matthew 5:11
You will be blessed when people speak against you and harm you and say bad things about you that are untrue, because of [your devotion to] me.

Good

1 Peter 3:1
In the same way [that Jesus was submissive], you wives should submit yourselves to your own husbands so that, even though they may not obey the [Gospel] message [they have heard] they may, without your talking [to them about it],

General references

Acts 24:13
Neither can anyone prove to you the charges they are now bringing against me.