Romans 1:31

unintelligent, unfaithful to engagements, unnatural, implacable, unmerciful:

2 Timothy 3:3

unnatural, implacable, slanderers, intemperate, inhuman, averse to goodness,

Matthew 15:16

And Jesus said, Are ye also to this time destitute of intelligence?

Romans 1:20-21

For from the creation of the world his invisible perfections, discoverable in the works that are made, are clearly seen, even his eternal power and deity; so that they are inexcusable:

Romans 3:11

there is none that understandeth, there is none that seeketh after 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 from the creation of the world his invisible perfections, discoverable in the works that are made, are clearly seen, even his eternal power and deity; so that they are inexcusable:
Romans 3:11
there is none that understandeth, there is none that seeketh after God.
Matthew 15:16
And Jesus said, Are ye also to this time destitute of intelligence?

Covenant-breakers

2 Timothy 3:3
unnatural, implacable, slanderers, intemperate, inhuman, averse to goodness,