Romans 1:31

covenant-breakers, incontinent, without natural affections, unmerciful,

2 Timothy 3:3

without natural affections, covenant breakers, devilish, intemperate, furious, opposed to good,

Matthew 15:16

And Jesus said, Are you indeed still without understanding?

Romans 1:20-21

for the invisible things of Him from the creation of the world are seen, being known by the things which are made, even His eternal power and divinity; so that they are without excuse:

Romans 3:11

there is no one who understands, there is no one who seeks out God;

Treasury of Scripture Knowledge

Summary

Without understanding, covenantbreakers, without natural affection, implacable, unmerciful:

Without understanding

Covenant-breakers

Bible References

Without understanding

Romans 1:20
for the invisible things of Him from the creation of the world are seen, being known by the things which are made, even His eternal power and divinity; so that they are without excuse:
Romans 3:11
there is no one who understands, there is no one who seeks out God;
Matthew 15:16
And Jesus said, Are you indeed still without understanding?

Covenant-breakers

2 Timothy 3:3
without natural affections, covenant breakers, devilish, intemperate, furious, opposed to good,