Proverbs 2:2

[in order] to incline your ear toward wisdom, [then] you shall apply your heart to understanding.

Psalm 90:12

So teach [us] to number our days that we may gain a heart of wisdom.

Psalm 119:111-112

I have taken as my own your testimonies forever, for they [are] the joy of my heart.

Proverbs 18:1

He who is selfish seeks a craving; against all sound judgment he shows contempt.

Proverbs 22:17-21

Incline your ear and hear the words of the wise; you shall apply your heart to my teaching.

Proverbs 23:12

Apply your heart to instruction, and your ear to sayings of knowledge.

Ecclesiastes 7:25

I set my mind to try to seek wisdom and the plan, and to know that wickedness [is] foolishness and that folly [is] delusion.

Ecclesiastes 8:9

I saw all this as I applied my heart to all the deeds done under the sun: {sometimes those in authority harm others}.

Ecclesiastes 8:16

I applied my mind to know wisdom and to understand the business that is done on earth--how neither day nor night one's eyes see sleep.

Isaiah 55:3

Extend your ear, and come to me! Listen so that your soul may live, and I will {make} an everlasting covenant with you, the enduring proofs of {the mercies shown to} David.

Matthew 13:9

The one who has ears, let him hear!"

Acts 17:11

Now these were more open-minded than those in Thessalonica. {They} accepted the message with all eagerness, examining the scriptures every day [to see] if these [things] were so.

Treasury of Scripture Knowledge

Summary

So that thou incline thine ear unto wisdom, and apply thine heart to understanding;

General references

Bible References

Thou

Proverbs 18:1
He who is selfish seeks a craving; against all sound judgment he shows contempt.
Psalm 119:111
I have taken as my own your testimonies forever, for they [are] the joy of my heart.
Isaiah 55:3
Extend your ear, and come to me! Listen so that your soul may live, and I will {make} an everlasting covenant with you, the enduring proofs of {the mercies shown to} David.
Matthew 13:9
The one who has ears, let him hear!"

Apply

Proverbs 22:17
Incline your ear and hear the words of the wise; you shall apply your heart to my teaching.
Proverbs 23:12
Apply your heart to instruction, and your ear to sayings of knowledge.
Psalm 90:12
So teach [us] to number our days that we may gain a heart of wisdom.
Ecclesiastes 7:25
I set my mind to try to seek wisdom and the plan, and to know that wickedness [is] foolishness and that folly [is] delusion.
Ecclesiastes 8:9
I saw all this as I applied my heart to all the deeds done under the sun: {sometimes those in authority harm others}.
Acts 17:11
Now these were more open-minded than those in Thessalonica. {They} accepted the message with all eagerness, examining the scriptures every day [to see] if these [things] were so.

General references

Proverbs 23:12
Apply your heart to instruction, and your ear to sayings of knowledge.