1 Peter 3:16

And see to it that your conscience is entirely clear, so that every time you are slandered or falsely accused, those who attack or disparage your good behavior in Christ will be shamed [by their own words].

1 Peter 2:12

Keep your behavior excellent among the [unsaved] Gentiles [conduct yourself honorably, with graciousness and integrity], so that for whatever reason they may slander you as evildoers, yet by observing your good deeds they may [instead come to] glorify God in the day of visitation [when He looks upon them with mercy].

Hebrews 13:18

Keep praying for us, for we are convinced that we have a good conscience, seeking to conduct ourselves honorably [that is, with moral courage and personal integrity] in all things.

Matthew 5:11

“Blessed [morally courageous and spiritually alive with life-joy in God’s goodness] are you when people insult you and persecute you, and falsely say all kinds of evil things against you because of [your association with] Me.

1 Timothy 1:5

But the goal of our instruction is love [which springs] from a pure heart and a good conscience and a sincere faith.

1 Peter 2:15

For it is the will of God that by doing right you may silence (muzzle, gag) the [culpable] ignorance and irresponsible criticisms of foolish people.

1 Peter 2:19

For this finds favor, if a person endures the sorrow of suffering unjustly because of an awareness of [the will of] God.

1 Peter 3:21

Corresponding to that [rescue through the flood], baptism [which is an expression of a believer’s new life in Christ] now saves you, not by removing dirt from the body, but by an appeal to God for a good (clear) conscience, [demonstrating what you believe to be yours] through the resurrection of Jesus Christ,

Acts 24:16

In view of this, I also do my best and strive always to have a clear conscience before God and before men.

Romans 9:1

I am telling the truth in Christ, I am not lying, my conscience testifies with me [enlightened and prompted] by the Holy Spirit,

2 Corinthians 1:12

This is our [reason for] proud confidence: our conscience testifies that we have conducted ourselves in the world [in general], and especially toward you, with pure motives and godly sincerity, not in human wisdom, but in the grace of God [that is, His gracious lovingkindness that leads people to Christ and spiritual maturity].

2 Corinthians 4:2

But we have renounced the disgraceful things hidden because of shame; not walking in trickery or adulterating the word of God, but by stating the truth [openly and plainly], we commend ourselves to everyone’s conscience in the sight of God.

1 Timothy 1:19

keeping your faith [leaning completely on God with absolute trust and confidence in His guidance] and having a good conscience; for some [people] have rejected [their moral compass] and have made a shipwreck of their faith.

2 Timothy 1:3

I thank God, whom I worship and serve with a clear conscience the way my forefathers did, as I constantly remember you in my prayers night and day,

Titus 2:8

sound and beyond reproach in instruction, so that the opponent [of the faith] will be shamed, having nothing bad to say about us.

Hebrews 9:14

how much more will the blood of Christ, who through the eternal [Holy] Spirit willingly offered Himself unblemished [that is, without moral or spiritual imperfection as a sacrifice] to God, cleanse your conscience from dead works and lifeless observances to serve the ever living God?

1 Peter 3:1-2

In the same way, you wives, be submissive to your own husbands [subordinate, not as inferior, but out of respect for the responsibilities entrusted to husbands and their accountability to God, and so partnering with them] so that even if some do not obey the word [of God], they may be won over [to Christ] without discussion by the godly lives of their wives,

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
Keep your behavior excellent among the [unsaved] Gentiles [conduct yourself honorably, with graciousness and integrity], so that for whatever reason they may slander you as evildoers, yet by observing your good deeds they may [instead come to] glorify God in the day of visitation [when He looks upon them with mercy].
Titus 2:8
sound and beyond reproach in instruction, so that the opponent [of the faith] will be shamed, having nothing bad to say about us.

Falsely

Matthew 5:11
“Blessed [morally courageous and spiritually alive with life-joy in God’s goodness] are you when people insult you and persecute you, and falsely say all kinds of evil things against you because of [your association with] Me.

Good

1 Peter 3:1
In the same way, you wives, be submissive to your own husbands [subordinate, not as inferior, but out of respect for the responsibilities entrusted to husbands and their accountability to God, and so partnering with them] so that even if some do not obey the word [of God], they may be won over [to Christ] without discussion by the godly lives of their wives,

General references

Acts 24:13
Nor can they present evidence to you to prove what they now bring against me.