James 4:16

But now ye rejoice in your boastings. All such rejoicing is evil.

1 Corinthians 5:6

Your rejoicing is not good. Know ye not that a little leaven soureth the whole lump of dough?

Psalm 52:1

{To the Chanter, an exhortation of David when Doeg the Edomite came to Saul, and showed him, saying: David is come to the house of Abimelech} Thy boastest thou thyself, thou tyrant, that thou canst do mischief, whereas the goodness of God endureth yet daily?

Psalm 52:7

"Lo, this is the man that took not God for his strength, but trusted unto the multitude of his riches, and was mighty in his wickedness!"

Proverbs 25:14

Whoso maketh great boasts and giveth nothing, is like clouds and wind without rain.

Proverbs 27:1

Make not thy boast of tomorrow, for thou knowest not what may happen today.

Isaiah 47:7-8

And thou thoughtest thus, "I shall be lady forever." And beside all that, thou hast not regarded these things, neither cast, what should come after.

Isaiah 47:10

For thou hast comforted thyself in thy deceitfulness, and hast said, "No man seeth me." Thine own wisdom and cunning hath deceived thee, in that thou hast said, "I am alone, and without me there is none."

1 Corinthians 4:7-8

For who preferreth thee? What hast thou, that thou hast not received? If thou have received it: why boastest thou as though thou hadst not received it?

James 3:14

But if ye have bitter envying and strife in your hearts, rejoice not: neither be liars against the truth.

Revelation 18:7

And as much as she glorified herself and lived wantonly, so much pour ye in for her of punishment, and sorrow, for she said in her heart, 'I sit, being a queen and am no widow and shall see no sorrow.'

Treasury of Scripture Knowledge

Summary

But now ye rejoice in your boastings: all such rejoicing is evil.

Bible References

General references

James 3:14
But if ye have bitter envying and strife in your hearts, rejoice not: neither be liars against the truth.
Psalm 52:1
{To the Chanter, an exhortation of David when Doeg the Edomite came to Saul, and showed him, saying: David is come to the house of Abimelech} Thy boastest thou thyself, thou tyrant, that thou canst do mischief, whereas the goodness of God endureth yet daily?
Proverbs 25:14
Whoso maketh great boasts and giveth nothing, is like clouds and wind without rain.
Proverbs 27:1
Make not thy boast of tomorrow, for thou knowest not what may happen today.
Isaiah 47:7
And thou thoughtest thus, "I shall be lady forever." And beside all that, thou hast not regarded these things, neither cast, what should come after.
1 Corinthians 4:7
For who preferreth thee? What hast thou, that thou hast not received? If thou have received it: why boastest thou as though thou hadst not received it?
1 Corinthians 5:6
Your rejoicing is not good. Know ye not that a little leaven soureth the whole lump of dough?
Revelation 18:7
And as much as she glorified herself and lived wantonly, so much pour ye in for her of punishment, and sorrow, for she said in her heart, 'I sit, being a queen and am no widow and shall see no sorrow.'