Psalm 53:1
"The fool hath said in his heart, There is no God. Corrupt are they, and have done abominable iniquity: there is none that doeth good."
Cross References (ranked by relevance)
The wicked, through the pride of his countenance, will not seek after God: God is not in all his thoughts.
But God said unto him, Thou fool, this night thy soul shall be required of thee: then whose shall those things be, which thou hast provided?
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;
How much more abominable and filthy is man, which drinketh iniquity like water?
He hath said in his heart, God hath forgotten: he hideth his face; he will never see it.
Wherefore doth the wicked contemn God? he hath said in his heart, Thou wilt not require it.
And there were also sodomites in the land: and they did according to all the abominations of the nations which the LORD cast out before the children of Israel.
O LORD God of my salvation, I have cried day and night before thee:
He hath said in his heart, I shall not be moved: for I shall never be in adversity.
Thou shalt not do so unto the LORD thy God: for every abomination to the LORD, which he hateth, have they done unto their gods; for even their sons and their daughters they have burnt in the fire to their gods.
And Jeroboam said in his heart, Now shall the kingdom return to the house of David:
But I say unto you, That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoever shall say to his brother, Raca, shall be in danger of the council: but whosoever shall say, Thou fool, shall be in danger of hell fire.
For the time past of our life may suffice us to have wrought the will of the Gentiles, when we walked in lasciviousness, lusts, excess of wine, revellings, banquetings, and abominable idolatries:
Who can bring a clean thing out of an unclean? not one.
For it is a shame even to speak of those things which are done of them in secret.