Matthew 12:36

But I tell you that for every careless word that men shall speak they will be held accountable on the day of Judgement.

Romans 2:16

on the day when God will judge the secrets of men's lives by Jesus Christ, as declared in the Good News as I have taught it.

Ephesians 6:4-6

And you, fathers, do not irritate your children, but bring them up tenderly with true Christian training and advice.

Jude 1:14-15

It was also about these that Enoch, who belonged to the seventh generation from Adam, prophesied, saying, "The Lord has come, attended by myriads of His people, to execute judgement upon all,

Revelation 20:12

And I saw the dead, the great and the small, standing in front of the throne. And books were opened; and so was another book--namely, the Book of Life; and the dead were judged by the things recorded in the books in accordance with what their conduct had been.

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.

General references

Bible References

Every

Romans 2:16
on the day when God will judge the secrets of men's lives by Jesus Christ, as declared in the Good News as I have taught it.
Ephesians 6:4
And you, fathers, do not irritate your children, but bring them up tenderly with true Christian training and advice.
Jude 1:14
It was also about these that Enoch, who belonged to the seventh generation from Adam, prophesied, saying, "The Lord has come, attended by myriads of His people, to execute judgement upon all,
Revelation 20:12
And I saw the dead, the great and the small, standing in front of the throne. And books were opened; and so was another book--namely, the Book of Life; and the dead were judged by the things recorded in the books in accordance with what their conduct had been.

General references

Mark 7:20
"What comes out of a man," He added, "that it is which makes him unclean.
Romans 14:12
So we see that every one of us will give account of himself to God.