Hebrews 2:1

Because of this, [it is] all the more necessary [that] we pay attention to the [things] we have heard, lest we drift away.

Proverbs 3:21

My child, may they not escape from your {sight}; may you keep sound wisdom and prudence.

Deuteronomy 4:9

"However, {take care} for yourself and watch your inner self closely, so that you do not forget the things that your eyes have seen, so that they do not slip from your mind all the days of your life; and you shall make them known to your children and to {your grandchildren}.

Deuteronomy 4:23

Watch [out] for yourselves so that you do not forget the covenant of Yahweh your God that he had {made} with you and make for yourselves a divine image [of] the form of anything that Yahweh your God {has forbidden},

Deuteronomy 32:46-47

then he said to them, "{Take to heart all the words} that I [am] admonishing [against] you {today} [concerning] which you should instruct them [with respect to] your children {so that they will observe diligently} all the words of this law,

Joshua 23:11-12

Take utmost care for [the sake of] your life to love Yahweh your God,

1 Chronicles 22:13

Then you will prosper if you take care to do the statutes and judgments which Yahweh commanded Moses concerning Israel. Be strong and be courageous; fear not and do not be dismayed.

Psalm 119:9

How can a young man keep his way pure? By taking heed according to your word.

Proverbs 2:1-6

My child, if you will receive my sayings, and hide my commands with you,

Proverbs 4:1-4

Children, listen [to the] instruction of a father, and be attentive [in order] to know insight.

Proverbs 4:20-22

My child, be attentive to my words; to my sayings incline your ear.

Proverbs 7:1-2

My child, guard my sayings; store my commandments with you.

Matthew 16:9

Do you not yet understand or do you not remember the five loaves for the five thousand, and how many baskets you took up?

Mark 8:18

[Although you] have eyes, do you not see? And [although you] have ears, do you not hear? And do you not remember?

Luke 8:15

But the [seed] on the good soil--these are the ones who, [after] hearing the word, hold fast to [it] with a noble and good heart, and bear fruit with patient endurance.

Luke 9:44

"{You take these words to heart}, for the Son of Man is about to be betrayed into the hands of men."

Hebrews 1:1-2

[Although] God spoke long ago in many parts and in many ways to the fathers by the prophets,

Hebrews 2:2-4

For if the word spoken through angels was binding and every transgression and act of disobedience received a just penalty,

Hebrews 12:5

And have you completely forgotten the exhortation which instructs you as sons? "My son, do not make light of the Lord's discipline, or give up [when you] are corrected by him.

Hebrews 12:25-26

Watch out that you do not refuse the one who is speaking! For if those did not escape [when they] refused the one who warned [them] on earth, much less [will] we [escape], [if we] reject the [one who warns] from heaven,

2 Peter 1:12-13

Therefore I intend to remind you continually concerning these [things], although [you] know [them] and are established in the truth that you have.

2 Peter 1:15

And I will also make every effort [that] you are able at any time, after my departure, {to recall these things to mind}.

2 Peter 3:1

Dear friends, this [is] already the second letter I am writing to you, in [both of] which I am attempting to stir up your sincere mind by a reminder,

Habakkuk 1:6

For look! I am raising up the Chaldeans, the bitter and impetuous nation, the one who walks through the spacious places of earth to take possession of dwellings not belonging to it.

Habakkuk 2:16

You will be sated with shame rather than glory. Drink also yourself, and expose yourself! The cup of the right hand of Yahweh will come around upon you and disgrace upon your glory.

Treasury of Scripture Knowledge

Summary

Therefore we ought to give the more earnest heed to the things which we have heard, lest at any time we should let them slip.

Let them slip

Bible References

Therefore

Hebrews 2:2
For if the word spoken through angels was binding and every transgression and act of disobedience received a just penalty,
Hebrews 1:1
[Although] God spoke long ago in many parts and in many ways to the fathers by the prophets,
Hebrews 12:25
Watch out that you do not refuse the one who is speaking! For if those did not escape [when they] refused the one who warned [them] on earth, much less [will] we [escape], [if we] reject the [one who warns] from heaven,

The more

Deuteronomy 4:9
"However, {take care} for yourself and watch your inner self closely, so that you do not forget the things that your eyes have seen, so that they do not slip from your mind all the days of your life; and you shall make them known to your children and to {your grandchildren}.
Deuteronomy 32:46
then he said to them, "{Take to heart all the words} that I [am] admonishing [against] you {today} [concerning] which you should instruct them [with respect to] your children {so that they will observe diligently} all the words of this law,
Joshua 23:11
Take utmost care for [the sake of] your life to love Yahweh your God,
1 Chronicles 22:13
Then you will prosper if you take care to do the statutes and judgments which Yahweh commanded Moses concerning Israel. Be strong and be courageous; fear not and do not be dismayed.
Psalm 119:9
How can a young man keep his way pure? By taking heed according to your word.
Proverbs 2:1
My child, if you will receive my sayings, and hide my commands with you,
Proverbs 3:21
My child, may they not escape from your {sight}; may you keep sound wisdom and prudence.
Proverbs 4:1
Children, listen [to the] instruction of a father, and be attentive [in order] to know insight.
Proverbs 7:1
My child, guard my sayings; store my commandments with you.
Luke 8:15
But the [seed] on the good soil--these are the ones who, [after] hearing the word, hold fast to [it] with a noble and good heart, and bear fruit with patient endurance.
Luke 9:44
"{You take these words to heart}, for the Son of Man is about to be betrayed into the hands of men."

We should

Hebrews 12:5
And have you completely forgotten the exhortation which instructs you as sons? "My son, do not make light of the Lord's discipline, or give up [when you] are corrected by him.
Matthew 16:9
Do you not yet understand or do you not remember the five loaves for the five thousand, and how many baskets you took up?
Mark 8:18
[Although you] have eyes, do you not see? And [although you] have ears, do you not hear? And do you not remember?
2 Peter 1:12
Therefore I intend to remind you continually concerning these [things], although [you] know [them] and are established in the truth that you have.
2 Peter 3:1
Dear friends, this [is] already the second letter I am writing to you, in [both of] which I am attempting to stir up your sincere mind by a reminder,

Let them slip

Habakkuk 1:6
For look! I am raising up the Chaldeans, the bitter and impetuous nation, the one who walks through the spacious places of earth to take possession of dwellings not belonging to it.
Habakkuk 2:16
You will be sated with shame rather than glory. Drink also yourself, and expose yourself! The cup of the right hand of Yahweh will come around upon you and disgrace upon your glory.

General references

Exodus 16:32
And Moses said, "This is the word that Yahweh has commanded. 'A full omer of it [is] for safekeeping for your generations so that they will see the bread that I fed you in the desert when I brought you from the land of Egypt.'"
Deuteronomy 6:8
And you shall bind them as a sign on your hand, and they shall be as an emblem between your eyes.
Deuteronomy 16:9
"You shall count [off] seven weeks for you; {from the time you begin to harvest the standing grain} you shall begin to count seven weeks.
Deuteronomy 32:46
then he said to them, "{Take to heart all the words} that I [am] admonishing [against] you {today} [concerning] which you should instruct them [with respect to] your children {so that they will observe diligently} all the words of this law,