Jude 1:5

and to remind you I intend, you knowing once this, that the Lord, a people out of the land of Egypt having saved, again those who did not believe did destroy;

Psalm 106:26

And He lifteth up His hand to them, To cause them to fall in a wilderness,

Numbers 26:64-65

and among these there hath not been a man of those numbered by Moses, and Aaron the priest, who numbered the sons of Israel in the wilderness of Sinai,

2 Peter 3:1

This, now, beloved, a second letter to you I write, in both which I stir up your pure mind in reminding you,

Numbers 14:22-37

for all the men who are seeing My honour, and My signs, which I have done in Egypt, and in the wilderness, and try Me these ten times, and have not hearkened to My voice --

Deuteronomy 2:15-16

and also the hand of Jehovah hath been against them, to destroy them from the midst of the camp, till they are consumed.

Romans 15:15

and the more boldly I did write to you, brethren, in part, as putting you in mind, because of the grace that is given to me by God,

1 Corinthians 10:1-12

And I do not wish you to be ignorant, brethren, that all our fathers were under the cloud, and all passed through the sea,

Hebrews 3:16-2

for certain having heard did provoke, but not all who did come out of Egypt through Moses;

2 Peter 1:12-13

Wherefore, I will not be careless always to remind you concerning these things, though, having known them, and having been established in the present truth,

Treasury of Scripture Knowledge

Summary

I will therefore put you in remembrance, though ye once knew this, how that the Lord, having saved the people out of the land of Egypt, afterward destroyed them that believed not.

Bible References

Having

1 Corinthians 10:1
And I do not wish you to be ignorant, brethren, that all our fathers were under the cloud, and all passed through the sea,

Afterward

Numbers 14:22
for all the men who are seeing My honour, and My signs, which I have done in Egypt, and in the wilderness, and try Me these ten times, and have not hearkened to My voice --
Numbers 26:64
and among these there hath not been a man of those numbered by Moses, and Aaron the priest, who numbered the sons of Israel in the wilderness of Sinai,
Deuteronomy 2:15
and also the hand of Jehovah hath been against them, to destroy them from the midst of the camp, till they are consumed.
Psalm 106:26
And He lifteth up His hand to them, To cause them to fall in a wilderness,
Hebrews 3:16
for certain having heard did provoke, but not all who did come out of Egypt through Moses;
Hebrews 4:1
We may fear, then, lest a promise being left of entering into His rest, any one of you may seem to have come short,

General references

Deuteronomy 1:32
'And in this thing ye are not stedfast in Jehovah your God,
Joshua 22:20
Did not Achan son of Zerah commit a trespass in the devoted thing, and on all the company of Israel there was wrath? and he alone expired not in his iniquity.'
Psalm 78:22
For they have not believed in God, Nor have they trusted in His salvation.
Matthew 25:2
and five of them were prudent, and five foolish;
1 Corinthians 10:5
but in the most of them God was not well pleased, for they were strewn in the wilderness,
1 Timothy 5:15
for already certain did turn aside after the Adversary.
Hebrews 3:19
and we see that they were not able to enter in because of unbelief.