Proverbs 23:12

Apply thine heart unto learning, and thine ear to the words of knowledge.

Proverbs 2:2-6

that thou wilt incline thin ears unto wisdom; apply thine heart then to understanding.

Proverbs 5:1-2

My son, give heed unto my wisdom, and bow thine ear to my prudence:

Proverbs 22:17

My son, bow down thine ear, and hearken unto the words of wisdom, apply thy mind unto my doctrine -

Proverbs 23:19

My son, give ear and be wise, so shall thine heart prosper in the way.

Ezekiel 33:31

These come unto thee, after the manner of a great people: yea, my people sit down before thee, and hear thy words, but they do not thereafter: for in their mouths they show themselves, as though they were fervent, but their heart goeth after their own covetous lucre.

Matthew 13:52

Then said he unto them, "Therefore every scribe which is taught unto the kingdom of heaven, is like a householder, which bringeth forth, out of his treasure, things both new and old."

James 1:21-25

Wherefore lay apart all filthiness, all superfluity of maliciousness, and receive with meekness the word that is grafted in you, which is able to save your souls:

Treasury of Scripture Knowledge

Summary

Apply thine heart unto instruction, and thine ears to the words of knowledge.

Bible References

General references

Proverbs 23:19
My son, give ear and be wise, so shall thine heart prosper in the way.
Proverbs 2:2
that thou wilt incline thin ears unto wisdom; apply thine heart then to understanding.
Proverbs 5:1
My son, give heed unto my wisdom, and bow thine ear to my prudence:
Proverbs 22:17
My son, bow down thine ear, and hearken unto the words of wisdom, apply thy mind unto my doctrine -
Ezekiel 33:31
These come unto thee, after the manner of a great people: yea, my people sit down before thee, and hear thy words, but they do not thereafter: for in their mouths they show themselves, as though they were fervent, but their heart goeth after their own covetous lucre.
Matthew 13:52
Then said he unto them, "Therefore every scribe which is taught unto the kingdom of heaven, is like a householder, which bringeth forth, out of his treasure, things both new and old."
James 1:21
Wherefore lay apart all filthiness, all superfluity of maliciousness, and receive with meekness the word that is grafted in you, which is able to save your souls: