Matthew 12:36

I tell you there will be an account in the Judgment Day for every careless word that men say.

Ecclesiastes 12:14

For God will bring every work into judgment with every secret thing, whether it is good or whether it is evil.

Romans 2:16

This is in the day when God will judge the secrets of men, according to my good news, by Jesus Christ.

Ephesians 6:4-6

Fathers, do not provoke your children to anger but nurture them in the discipline and instruction of God.

Jude 1:14-15

Enoch, the seventh from Adam, prophesied about these, saying: Behold, Jehovah came with many thousands of his holy ones.

Revelation 20:12

I saw the dead, small and great, stand before God. The books were opened: and another book was opened, which is the book of life: and the dead were judged according to the things written in the books, according to their works.

Treasury of Scripture Knowledge

Summary

But I say unto you, That every idle word that men shall speak, they shall give account thereof in the day of judgment.

Bible References

Every

Ecclesiastes 12:14
For God will bring every work into judgment with every secret thing, whether it is good or whether it is evil.
Romans 2:16
This is in the day when God will judge the secrets of men, according to my good news, by Jesus Christ.
Ephesians 6:4
Fathers, do not provoke your children to anger but nurture them in the discipline and instruction of God.
Jude 1:14
Enoch, the seventh from Adam, prophesied about these, saying: Behold, Jehovah came with many thousands of his holy ones.
Revelation 20:12
I saw the dead, small and great, stand before God. The books were opened: and another book was opened, which is the book of life: and the dead were judged according to the things written in the books, according to their works.

General references

Proverbs 13:3
He who keeps his mouth (watches what he says) keeps his life. He who opens wide his lips (speaks thoughtlessly) will have destruction.
Ecclesiastes 12:14
For God will bring every work into judgment with every secret thing, whether it is good or whether it is evil.
Mark 7:20
That which comes out of the man defiles the man.
Romans 14:12
So then every one of us will give account of himself to God.