Exodus 5:2

"And Pharaoh said, Who is the LORD, that I should obey his voice to let Israel go? I know not the LORD, neither will I let Israel go."

Cross References (ranked by relevance)

Exodus 3:19 14

And I am sure that the king of Egypt will not let you go, no, not by a mighty hand.

Job 21:15

What is the Almighty, that we should serve him? and what profit should we have, if we pray unto him?

2 Kings 18:35

Who are they among all the gods of the countries, that have delivered their country out of mine hand, that the LORD should deliver Jerusalem out of mine hand?

Romans 1:28

And even as they did not like to retain God in their knowledge, God gave them over to a reprobate mind, to do those things which are not convenient;

2 Thessalonians 1:8

In flaming fire taking vengeance on them that know not God, and that obey not the gospel of our Lord Jesus Christ:

John 16:3

And these things will they do unto you, because they have not known the Father, nor me.

Psalm 12:4

Who have said, With our tongue will we prevail; our lips are our own: who is lord over us?

Psalm 14:1

The fool hath said in his heart, There is no God. They are corrupt, they have done abominable works, there is none that doeth good.

2 Chronicles 32:15

Now therefore let not Hezekiah deceive you, nor persuade you on this manner, neither yet believe him: for no god of any nation or kingdom was able to deliver his people out of mine hand, and out of the hand of my fathers: how much less shall your God deliver you out of mine hand?

Psalm 10:4

The wicked, through the pride of his countenance, will not seek after God: God is not in all his thoughts.

2 Chronicles 32:19

And they spake against the God of Jerusalem, as against the gods of the people of the earth, which were the work of the hands of man.

1 Samuel 2:12

Now the sons of Eli were sons of Belial; they knew not the LORD.