Titus 2:8

the sound word, irrefutable, in order that the adversary may be ashamed, having nothing evil to say concerning us.

1 Peter 2:12

having your deportment beautiful among the Gentiles: in order that in whatsoever they calumniate you as evil doers, seeing from your beautiful works, they may glorify God in the day of his visitation.

2 Thessalonians 3:14

But if any one does not obey our word through the epistle, note him; do not keep company with him; in order that he may be ashamed;

1 Timothy 5:14

Therefore I wish the younger women to marry, to raise up children, to rule the house, to give no occasion to the adversary for the sake of reproach;

1 Timothy 6:3

If any one teaches another doctrine, and does not give heed to the sound words which belonged to our Lord Jesus Christ, and to the doctrine which is according to godliness;

1 Peter 3:16

having a good conscience, in order that, in whatsoever you are calumniated, those traducing your good deportment in Christ may be ashamed.

Mark 12:17

And Jesus responding said to them, Render unto Caesar the things which are Caesar's, and unto God the things which are God's. And they were astonished at Him.

Mark 12:28

And a certain one of the scribes, hearing them propounding questions, knowing that He answered them beautifully, asked Him, What is the first commandment of all?

Mark 12:32

And the scribes said to Him, Truly, Teacher; thou hast spoken in truth that He is One; and there is no other besides Him.

Mark 12:34

And Jesus seeing that he answered intelligently, said to him, Thou art not far from the kingdom of God. And no one dared to ask Him any more,

Luke 13:17

And He speaking these things, all opposing Him became ashamed: and the whole multitude rejoiced over all the illustrious works wrought by Him.

Philippians 2:14-16

Do all things without murmurings and disputatious;

1 Peter 2:15

because thus it is the will of God, that doing good you should put to shame the ignorance of the ignorant 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 wish the younger women to marry, to raise up children, to rule the house, to give no occasion to the adversary for the sake of reproach;
1 Peter 2:12
having your deportment beautiful among the Gentiles: in order that in whatsoever they calumniate you as evil doers, seeing from your beautiful works, they may glorify God in the day of his visitation.
1 Peter 3:16
having a good conscience, in order that, in whatsoever you are calumniated, those traducing your good deportment in Christ may be ashamed.

May

Luke 13:17
And He speaking these things, all opposing Him became ashamed: and the whole multitude rejoiced over all the illustrious works wrought by Him.
2 Thessalonians 3:14
But if any one does not obey our word through the epistle, note him; do not keep company with him; in order that he may be ashamed;

Having

Philippians 2:14
Do all things without murmurings and disputatious;