Ephesians 5:4

nor filthiness, nor foolish talking, nor jesting, which are not becoming, but rather thanks-giving.

Ephesians 4:29

Let no corrupt speech proceed out of your mouth, but whatever is good for the supplying of the need, that it may give grace to those who hear.

Romans 1:28

And, as they did not approve the holding of God in their knowledge, God delivered them up to a reprobate mind, to do those things which are not becoming;

Matthew 12:34-37

"Broods of vipers! how can ye speak good things, being yourselves evil? For, out of the abundance of the heart, the mouth speaks.

Mark 7:22

covetings, wickednesses, deceit, wantonness, an evil eye, blasphemy, pride, foolishness:

John 6:23

(yet there came boats from Tiberias near to the place where they ate the bread, the Lord having given thanks):

2 Corinthians 1:11

ye also helping together on our behalf by your supplication; that, for the mercy bestowed upon us by means of many persons, thanks may be given by many on our behalf.

2 Corinthians 9:15

Thanks be to God for His unspeakable gift!

Ephesians 1:16

cease not to give thanks on your behalf, making mention of you in my prayers;

Ephesians 5:19-20

speaking to yourselves in psalms, and hymns, and spiritual songs, singing and making melody in your heart to the Lord;

Philippians 4:6

Be anxious for nothing; but, in everything by prayer and supplication with thanksgiving, let your requests be made known to God:

Colossians 3:8

But now do ye also put away all these; anger, wrath, malice, reviling, shameful talk out of your mouth.

Colossians 3:15-17

And let the peace of Christ rule in your hearts, unto which also ye were called in one body; and become thankful.

1 Thessalonians 3:9

For what thanksgiving can we render again to God concerning you for all the joy wherewith we rejoice on your account before our God;

1 Thessalonians 5:18

In everything give thanks; for this is God's will in Christ Jesus respecting you.

Hebrews 13:15

Through Him, therefore, let us offer up a sacrifice of praise to God continually; that is, the fruit of our lips making confession to His name.

James 3:4-8

Behold also the ships, large as they are, and driven along by fierce winds, are turned about by a very small rudder, wheresoever the impulse of the steersman wills.

2 Peter 2:7

and delivered righteous Lot, distressed by the conduct of those who were impious in lasciviousness,

2 Peter 2:18

For, uttering great swelling words of vanity, they entice, in desires of the flesh, by their lasciviousness, those just escaping from those who live in error;

Jude 1:10

But these rail at such things as they know not; and what they understand naturally, as the irrational animals, in these things they are corrupted.

Jude 1:13

wild waves of the sea, foaming out their own ignominies; wandering stars, for whom the blackness of the darkness has been reserved forever.

Treasury of Scripture Knowledge

Summary

Neither filthiness, nor foolish talking, nor jesting, which are not convenient: but rather giving of thanks.

Bible References

Convenient

Romans 1:28
And, as they did not approve the holding of God in their knowledge, God delivered them up to a reprobate mind, to do those things which are not becoming;
Philemon 1:8
Wherefore, though having much boldness in Christ to enjoin upon you that which is becoming,

But

Ephesians 5:19
speaking to yourselves in psalms, and hymns, and spiritual songs, singing and making melody in your heart to the Lord;
Ephesians 1:16
cease not to give thanks on your behalf, making mention of you in my prayers;
John 6:23
(yet there came boats from Tiberias near to the place where they ate the bread, the Lord having given thanks):
2 Corinthians 1:11
ye also helping together on our behalf by your supplication; that, for the mercy bestowed upon us by means of many persons, thanks may be given by many on our behalf.
2 Corinthians 9:15
Thanks be to God for His unspeakable gift!
Philippians 4:6
Be anxious for nothing; but, in everything by prayer and supplication with thanksgiving, let your requests be made known to God:
Colossians 3:15
And let the peace of Christ rule in your hearts, unto which also ye were called in one body; and become thankful.
1 Thessalonians 3:9
For what thanksgiving can we render again to God concerning you for all the joy wherewith we rejoice on your account before our God;
1 Thessalonians 5:18
In everything give thanks; for this is God's will in Christ Jesus respecting you.
Hebrews 13:15
Through Him, therefore, let us offer up a sacrifice of praise to God continually; that is, the fruit of our lips making confession to His name.