2 Peter 2:5

and if He did not spare the ancient world of Noah's day, when He brought a flood on those ungodly people (though Noah, a preacher of righteousness, and seven other people, were saved from it);

2 Peter 3:6

[And] it was by water that the world, which existed at that time, perished in a great flood [of Noah's day]!

Hebrews 11:7

By [having] faith, when Noah was warned [by God] about conditions that had not yet been seen [i.e., regarding events of the coming Flood], he acted out of reverent concern [for God] by constructing a ship to save [i.e., rescue] his household [from the Flood waters]. By this [i.e., his faith which led to action], Noah condemned the world and inherited righteousness because of his faith.

Matthew 24:37-39

As it was during the days of Noah, so it will be when the presence of the Son of man [arrives].

Luke 17:26-27

"And just as it happened in the days of Noah, so it will be in the days of the Son of man.

1 Peter 3:19-20

It was by the Holy Spirit that He went to preach [See Eph. 2:17] to the [now departed] spirits [of pre-Flood people who are now] in prison [i.e., Hades].

Jude 1:14-15

And it was also prophesied about [these] people by Enoch, the seventh [descendant] of Adam [Gen. 5:18-24], who said, "Look, the Lord came with thousands upon thousands [Note: The Greek uses the plural form of "myriad," which means 10,000] of His holy ones [i.e., angels],

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

General references

Bible References

The eighth

1 Peter 3:20
These people had disobeyed [Noah's preaching, See II Pet. 2:5] back when God's patience waited [for them to repent, See Gen. 6:3], during the days of Noah, when the ship was being constructed. It was by that means [i.e., the ship floating them to safety through the Flood waters] that a few persons, eight of them, were saved [from destruction] through water.

Bringing

2 Peter 3:6
[And] it was by water that the world, which existed at that time, perished in a great flood [of Noah's day]!

General references

Matthew 24:37
As it was during the days of Noah, so it will be when the presence of the Son of man [arrives].
2 Peter 3:6
[And] it was by water that the world, which existed at that time, perished in a great flood [of Noah's day]!