Jude 1:5

But, I want to remind you, [even] though you already know the stories about how the Lord delivered His people from Egyptian [bondage], and then [later] destroyed those who did not believe [in Him].

2 Peter 3:1

This is now, my dearly loved ones, the second letter I am writing to you; in both of them, as a reminder, I want to stir up your sincere thoughts

Romans 15:15

But I have written to you quite boldly in some places to remind you [of certain things], because of the favor shown to me by God,

1 Corinthians 10:1-12

For I want you to be [fully] aware, brothers, that our forefathers were all under the cloud, and all of them passed [safely] through the [Red] Sea. [Note: This refers to God guiding the Israelites through the desert during the daytime by a cloud moving along above them . See Ex. 13:21-22].

Hebrews 3:16-2

For who were they who heard [God] and provoked [Him]? Was it not everyone who was led out of Egypt by Moses?

2 Peter 1:12-13

Therefore, I intend to constantly remind you people about these things [i.e., those mentioned in verses 5-11], even though you [already] know them, and have been established in the truth you now possess.

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
For I want you to be [fully] aware, brothers, that our forefathers were all under the cloud, and all of them passed [safely] through the [Red] Sea. [Note: This refers to God guiding the Israelites through the desert during the daytime by a cloud moving along above them . See Ex. 13:21-22].

Afterward

Hebrews 3:16
For who were they who heard [God] and provoked [Him]? Was it not everyone who was led out of Egypt by Moses?
Hebrews 4:1
So, as long as God's promise of entering into a state of rest with Him [still] remains, we should fear that someone among you will appear [in the end] to have fallen short of [attaining] it. [Note: In this section "entering into rest" refers to Israel entering Canaan (verses 6, 8) and to Christians entering heaven (verses 3, 9). The "Sabbath day rest" is represented as a type of both].

General references

Matthew 25:2
Five of the bridesmaids were foolish and five were sensible.
1 Corinthians 10:5
However, God was not pleased with the vast majority of them, for their bodies were scattered over the desert [See Num. 14:29ff].
1 Timothy 5:15
For some [young widows] have already turned away [from their commitment to God] to serve Satan.
Hebrews 3:19
And [so] we see that they were not able to enter [a state of rest with God] because of [their] unbelief.