Isaiah 8:20

To the law and to the testimony! If they do not speak according to this word, it is because there is no light in them.

Micah 3:6

Therefore the vision shall be made night unto you, and darkness unto those that divine, and the sun shall go down over the prophets, and the day shall be dark over them.

2 Peter 1:19

We have also the most sure word of the prophets, unto which ye do well that ye take heed, as unto a light that shines in a dark place, until the day dawns and the morning star arises in your hearts,

Isaiah 8:16

Bind up the testimony; seal the law among my disciples.

Psalm 19:7-8

The law of the LORD is perfect, converting the soul; the testimony of the LORD is sure, making wise the simple.

Psalm 119:130

The exposition of thy words gives light; it gives understanding unto the simple.

Proverbs 4:18

But the path of the just is as the light of the morning star, that shines more and more until the day is perfect.

Isaiah 1:10

Hear the word of the LORD, ye princes of Sodom; give ear unto the law of our God, ye people of Gomorrah.

Isaiah 30:8-11

Now go, write this vision before them on a tablet and note it in a book that it may remain unto the last day, for ever, unto all ages.

Jeremiah 8:9

The wise men are ashamed, they are dismayed and taken: behold, they have rejected the word of the LORD; and what wisdom is in them?

Hosea 6:3

And we shall know and follow on in knowing the LORD; his going forth is prepared as the dawn; and he shall come unto us as the rain, as the latter and former rain unto the earth.

Malachi 4:2

But unto you that fear my name shall the Sun of righteousness be born, and in his wings he shall bring saving health; and ye shall go forth and jump like calves of the herd.

Matthew 6:23

But if thine eye is evil, thy whole body shall be full of darkness. If, therefore, the light that is in thee is darkness, how great is that darkness!

Matthew 22:29

Then Jesus answered and said unto them, Ye do err, not knowing the scriptures nor the power of God.

Mark 7:7-9

Howbeit in vain do they honor me, teaching for doctrines the commandments of men.

Luke 10:26

He said unto him, What is written in the law? How readest thou?

Luke 16:29-31

Abraham said unto him, They have Moses and the prophets; let them hear them.

John 5:39

Search the scriptures, for in them ye think ye have eternal life; and they are those who testify of me.

John 5:46-47

For had ye believed Moses, ye would have believed me, for he wrote of me.

Acts 17:11

These were more noble than those in Thessalonica, in that they received the word with all diligence and searched the scriptures daily, whether those things were so.

Romans 1:22

Professing themselves to be wise, they became fools

Galatians 3:8-29

And the scripture, foreseeing that God would justify the Gentiles through faith, evangelized Abraham in advance, saying, In thee shall all the Gentiles be blessed.

Galatians 4:21-22

Tell me, ye that desire to be under the law, have ye not heard the law?

2 Timothy 3:15-17

and that from a child thou hast known the holy scriptures, which are able to make thee wise unto saving health by the faith which is in Christ Jesus.

2 Peter 1:9

But he that lacks these things is blind and walks feeling the way with his hand, having forgotten that he was purged from his old sins.

Treasury of Scripture Knowledge

Summary

To the law and to the testimony: if they speak not according to this word, it is because there is no light in them.

Bible References

It is

Isaiah 30:8
Now go, write this vision before them on a tablet and note it in a book that it may remain unto the last day, for ever, unto all ages.
Psalm 19:7
The law of the LORD is perfect, converting the soul; the testimony of the LORD is sure, making wise the simple.
Psalm 119:130
The exposition of thy words gives light; it gives understanding unto the simple.
Jeremiah 8:9
The wise men are ashamed, they are dismayed and taken: behold, they have rejected the word of the LORD; and what wisdom is in them?
Micah 3:6
Therefore the vision shall be made night unto you, and darkness unto those that divine, and the sun shall go down over the prophets, and the day shall be dark over them.
Matthew 6:23
But if thine eye is evil, thy whole body shall be full of darkness. If, therefore, the light that is in thee is darkness, how great is that darkness!
Matthew 22:29
Then Jesus answered and said unto them, Ye do err, not knowing the scriptures nor the power of God.
Mark 7:7
Howbeit in vain do they honor me, teaching for doctrines the commandments of men.
Romans 1:22
Professing themselves to be wise, they became fools
2 Peter 1:9
But he that lacks these things is blind and walks feeling the way with his hand, having forgotten that he was purged from his old sins.

Light

Proverbs 4:18
But the path of the just is as the light of the morning star, that shines more and more until the day is perfect.
Hosea 6:3
And we shall know and follow on in knowing the LORD; his going forth is prepared as the dawn; and he shall come unto us as the rain, as the latter and former rain unto the earth.
Malachi 4:2
But unto you that fear my name shall the Sun of righteousness be born, and in his wings he shall bring saving health; and ye shall go forth and jump like calves of the herd.
2 Peter 1:19
We have also the most sure word of the prophets, unto which ye do well that ye take heed, as unto a light that shines in a dark place, until the day dawns and the morning star arises in your hearts,

General references

Numbers 8:2
Speak unto Aaron and say unto him, When thou lightest the lamps, the seven lamps shall give light over against the face of the lampstand.
Micah 5:12
and I will cause the witchcrafts to be destroyed by thy hand; and no more soothsayers shall be found in thee:
Matthew 14:4
For John said unto him, It is not lawful for thee to have her.
Luke 10:26
He said unto him, What is written in the law? How readest thou?