2 Peter 2:5

And He did not spare the old world, but saved Noah the eighth one, a preacher of righteousness, bringing in the flood upon the world of the ungodly.

2 Peter 3:6

through which the world that then was, being flooded by water, perished.

Hebrews 11:7

By faith Noah, having been warned by God of things not yet seen, moved with fear, prepared an ark to the saving of his house, by which he condemned the world and became heir of the righteousness which is according to faith.

Genesis 6:1-8

And it happened, when men began to multiply on the face of the earth, and when daughters were born to them,

Genesis 7:1-24

And Jehovah said to Noah, You and all your house come into the ark, for I have seen you righteous before Me in this generation.

Job 22:15-16

Do you keep to the old way which wicked men have walked?

Matthew 24:37-39

But as the days of Noah were, so shall be the coming of the Son of Man.

Luke 17:26-27

And as it was in the days of Noah, so it also shall be in the days of the Son of Man.

1 Peter 3:19-20

in which also He went and preached to the spirits in prison,

Jude 1:14-15

And Enoch, the seventh from Adam, also prophesied to these, saying, Behold, the Lord came with myriads of His saints,

Treasury of Scripture Knowledge

Summary

And spared not the old world, but saved Noah the eighth person, a preacher of righteousness, bringing in the flood upon the world of the ungodly;

The eighth

Bringing

Bible References

The eighth

1 Peter 3:20
to disobeying ones, when once the long-suffering of God waited in the days of Noah, while the ark was being prepared (in which a few, that is, eight souls were saved through water);

Bringing

2 Peter 3:6
through which the world that then was, being flooded by water, perished.

General references

Genesis 6:8
But Noah found grace in the eyes of Jehovah.
Genesis 7:7
And Noah went in. And his sons and his wife and his sons' wives went in with him into the ark, because of the waters of the flood.
Matthew 24:37
But as the days of Noah were, so shall be the coming of the Son of Man.
2 Peter 3:6
through which the world that then was, being flooded by water, perished.