Romans 1:31
senseless, faithless, unfeeling, unmerciful,
2 Timothy 3:3
hardhearted, irreconcilable, slanderous, without self-control, savage, with no interest for what is good,
2 Kings 18:14-37
So Hezekiah king of Judah sent [word] to the king of Assyria at Lachish, saying, "I have done wrong. Withdraw from me. What you impose on me I will bear." So the king of Assyria imposed on Hezekiah king of Judah three hundred talents of silver and thirty talents of gold.
Proverbs 18:2
A fool will not take pleasure in understanding, but in expressing his heart.
Isaiah 27:11
{When its branches are dry}, they are broken; women [are] coming [and] setting light to it. For it [is] not a people of understanding; therefore his maker will not have compassion on him, and his creator will not show him favor.
Isaiah 33:8
Highways are deserted; [the] traveler [on the] road ceases. One breaks a treaty, he rejects [the] cities, he does not hold man in high regard.
Jeremiah 4:22
"For my people [are] foolish, they have not known me. They [are] foolish children, and they do not have insight. They [are] skillful at doing evil, and they do not know [how] to do good."
Matthew 15:16
But he said, "Are you also still without understanding?
Romans 1:20-21
For from the creation of the world, his invisible [attributes], both his eternal power and deity, are discerned clearly, being understood in the things created, so that they are without excuse.
Romans 3:11
[there] is no one who understands; [there] is no one who seeks God.