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.

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].

2 Thessalonians 3:14

And if any person does not obey our instructions, [given] in this letter, you should take note of him so that you do not associate with him, in hope that he will become ashamed [of his conduct].

1 Timothy 5:14

Therefore, I want the younger widows to get married, have children and manage their homes, so that they do not give the enemy [i.e., non-Christians] an opportunity for speaking against [the church].

1 Timothy 6:3

If anyone teaches a different doctrine [i.e., from what has been urged above], and does not agree to [proclaim the] sound words of our Lord Jesus Christ and to teaching that is godly [i.e., in harmony with godliness],

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.

Mark 12:17

Then Jesus replied to them, "Pay to Caesar whatever belongs to Caesar and pay to God whatever belongs to God." And they greatly marveled at Him.

Mark 12:28

Then one of the experts in the law of Moses [Note: Matt. 22:34 identifies him as being a Pharisee also], came and heard Jesus and the Sadducees discussing together [i.e., the subject of the resurrection], and knowing that Jesus had refuted the Sadducees successfully, asked Him, "Which commandment is foremost, above all the others?"

Mark 12:32

The expert in the law of Moses said to Jesus, "Truly, Teacher, you are right in saying that God is [the only] one and that there is no other God but Him.

Mark 12:34

When Jesus saw that this man answered wisely, He said to him, "You are not [very] far from the kingdom of God." And after that, no one dared to ask Him any more questions.

Luke 13:17

And as He said these things, all of His enemies felt ashamed [i.e., for objecting to such a noble act], but the whole crowd rejoiced over all the wonderful things He was doing.

Philippians 2:14-16

Do everything without complaining and arguing,

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.

Treasury of Scripture Knowledge

Summary

Sound speech, that cannot be condemned; that he that is of the contrary part may be ashamed, having no evil thing to say of you.

Bible References

That he

1 Timothy 5:14
Therefore, I want the younger widows to get married, have children and manage their homes, so that they do not give the enemy [i.e., non-Christians] an opportunity for speaking against [the church].
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].
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.

May

Luke 13:17
And as He said these things, all of His enemies felt ashamed [i.e., for objecting to such a noble act], but the whole crowd rejoiced over all the wonderful things He was doing.
2 Thessalonians 3:14
And if any person does not obey our instructions, [given] in this letter, you should take note of him so that you do not associate with him, in hope that he will become ashamed [of his conduct].

Having

Philippians 2:14
Do everything without complaining and arguing,