Hebrews 2:1

For this ought we to hold above measure to the things heard, lest we slip away.

Proverbs 3:21

My son, they shall not depart from thine eyes: keep counsel and meditation:

Deuteronomy 4:9

Only watch to thyself and watch thy soul greatly, lest thou. shalt forget the words which thine eyes saw, and lest they shall remove from thy heart all the days of thy life: and make them known to thy sons and to the sons of thy sons.

Deuteronomy 4:23

Watch for yourselves lest ye shall forget the covenant of Jehovah your God which he cut out with you, and ye make to you any carved thing, the appearance of any thing which Jehovah thy God commanded thee.

Deuteronomy 32:46-47

And he will say to them, Set your hearts to all the words which I call upon you to witness this day, which ye shall command your sons to watch and to do, all the words of this law.

Joshua 23:11-12

And watch greatly for your souls, to love Jehovah your God.

1 Chronicles 22:13

Then thou shalt prosper if thou shalt watch to do the laws and the judgments which Jehovah commanded Moses concerning Israel: be strong and be active; thou shalt not fear and thou shalt not be terrified.

Psalm 119:9

In what shall a youth cleanse his way? To watch according to thy word.

Proverbs 2:1-6

My son, if thou wilt receive my words, and wilt hide my commands with thee;

Proverbs 4:1-4

Hear, ye sons, the instruction of a father, and attend to know understanding.

Proverbs 4:20-22

My son, attend to my word; incline thine ear to my sayings.

Proverbs 7:1-2

My son, watch my words, and thou shalt hide my commands with thee.

Matthew 16:9

Do ye not yet understand, nor remember the five loaves of five thousand, and how many baskets ye took?

Mark 8:18

Having eyes, see ye not? and having ears, hear ye not? and remember ye not?

Luke 8:15

And that in the good earth, they are they which, in a fair and good heart, having heard, keep the word, and bring forth fruit with patience.

Luke 9:44

Put ye these words into your ears: for the Son of man is about to be delivered up into the bands of men.

Hebrews 1:1-2

God, formerly multifariously and abundantly having spoken to the fathers in the prophets,

Hebrews 2:2-4

For if the word spoken by angels was firm, and every transgression and bad instruction received the just payment of reward;

Hebrews 12:5

And ye have totally forgotten the entreaty which is spoken to you as to sons, My son, neglect not the instruction of the Lord, nor be enervated being rebuked by him:

Hebrews 12:25-26

See that ye refuse not him speaking. For if they escaped not, having refused him giving an intimation of the divine will on earth, much more we, who having turned back from him from the heavens:

2 Peter 1:12-13

Wherefore I will not neglect to remind you always of these things, though having known, and being supported in the present truth.

2 Peter 1:15

And I shall also be earnest for you always to have, after my exit, this putting in mind to be done.

2 Peter 3:1

Now this, dearly beloved, the second epistle I write to you; in which I awaken your pure mind by putting in remembrance:

Habakkuk 1:6

For behold me raising up the Chaldeans, the nation bitter and hasty, going upon the wide places of the land to possess the dwelling not to him.

Habakkuk 2:16

Thou wert satisfied with dishonor rather than honor: drink thou also and be uncircumcised: the cup of the right hand of Jehovah shall turn upon thee, and ignominy upon thy 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 by angels was firm, and every transgression and bad instruction received the just payment of reward;
Hebrews 1:1
God, formerly multifariously and abundantly having spoken to the fathers in the prophets,
Hebrews 12:25
See that ye refuse not him speaking. For if they escaped not, having refused him giving an intimation of the divine will on earth, much more we, who having turned back from him from the heavens:

The more

Deuteronomy 4:9
Only watch to thyself and watch thy soul greatly, lest thou. shalt forget the words which thine eyes saw, and lest they shall remove from thy heart all the days of thy life: and make them known to thy sons and to the sons of thy sons.
Deuteronomy 32:46
And he will say to them, Set your hearts to all the words which I call upon you to witness this day, which ye shall command your sons to watch and to do, all the words of this law.
Joshua 23:11
And watch greatly for your souls, to love Jehovah your God.
1 Chronicles 22:13
Then thou shalt prosper if thou shalt watch to do the laws and the judgments which Jehovah commanded Moses concerning Israel: be strong and be active; thou shalt not fear and thou shalt not be terrified.
Psalm 119:9
In what shall a youth cleanse his way? To watch according to thy word.
Proverbs 2:1
My son, if thou wilt receive my words, and wilt hide my commands with thee;
Proverbs 3:21
My son, they shall not depart from thine eyes: keep counsel and meditation:
Proverbs 4:1
Hear, ye sons, the instruction of a father, and attend to know understanding.
Proverbs 7:1
My son, watch my words, and thou shalt hide my commands with thee.
Luke 8:15
And that in the good earth, they are they which, in a fair and good heart, having heard, keep the word, and bring forth fruit with patience.
Luke 9:44
Put ye these words into your ears: for the Son of man is about to be delivered up into the bands of men.

We should

Hebrews 12:5
And ye have totally forgotten the entreaty which is spoken to you as to sons, My son, neglect not the instruction of the Lord, nor be enervated being rebuked by him:
Matthew 16:9
Do ye not yet understand, nor remember the five loaves of five thousand, and how many baskets ye took?
Mark 8:18
Having eyes, see ye not? and having ears, hear ye not? and remember ye not?
2 Peter 1:12
Wherefore I will not neglect to remind you always of these things, though having known, and being supported in the present truth.
2 Peter 3:1
Now this, dearly beloved, the second epistle I write to you; in which I awaken your pure mind by putting in remembrance:

Let them slip

Habakkuk 1:6
For behold me raising up the Chaldeans, the nation bitter and hasty, going upon the wide places of the land to possess the dwelling not to him.
Habakkuk 2:16
Thou wert satisfied with dishonor rather than honor: drink thou also and be uncircumcised: the cup of the right hand of Jehovah shall turn upon thee, and ignominy upon thy glory.

General references

Exodus 16:32
And Moses will say, This the word which Jehovah commanded, Fill the omer from it for a preservation to your generations; so that they shall see the bread which I gave you to eat in the desert in my bringing you forth out of the land of Egypt
Deuteronomy 6:8
And bind them for a sign upon thy hand, and they shall be for bands between thine eyes.
Deuteronomy 16:9
Seven weeks shalt thou number to thee: from the beginning of the sickle upon the standing grain, thou shalt begin to number seven weeks.
Deuteronomy 32:46
And he will say to them, Set your hearts to all the words which I call upon you to witness this day, which ye shall command your sons to watch and to do, all the words of this law.