Jeremiah 5:4
Therefore I said, Surely these are poor; they are foolish: for they know not the way of the Lord, nor the judgment of their God.
Cross-reference
Jeremiah 5:21 rebukes foolish people who have eyes but do not see — same theme of spiritual ignorance.
Jeremiah 4:22 echoes the same 'foolish' and 'do not know' language, identifying the whole people as ignorant of God.
Jeremiah 8:7 contrasts even birds knowing seasons with my people not knowing God's requirements — directly parallel to 'do not know'.
Jeremiah 6:10 describes uncircumcised ears that cannot listen — reinforcing the people's inability to know God's ways.
Isaiah 27:11 calls Israel a people without understanding, whose Maker has no compassion — same 'without knowledge' theme.
Hosea 4:6 says people are destroyed from lack of knowledge — directly parallel to the foolishness and ignorance in Jeremiah.
John 7:49 says the crowd that does not know the law is accursed — directly parallel to 'they do not know the way of the LORD'.
Hosea 4:1 states there is no knowledge of God in the land — directly parallel to the poor not knowing the way of the LORD.
Amos 3:10 says they do not know how to do right — similar indictment of ignorance, parallel to Jeremiah 5:4.
Isaiah 28:9-13 describes scoffers who reject God's instruction — similar ignorance but from pride, not poverty.
Micah 3:1 rebukes leaders who should know justice, paralleling the indictment here of those who fail to know God's ways.