Psalm 140:2

For their hearts are full of evil designs; and they are ever making ready causes of war.

Psalm 56:6

They come together, they are waiting in secret places, they take note of my steps, they are waiting for my soul.

Psalm 36:4

He gives thought to evil on his bed; he takes a way which is not good; he is not a hater of evil.

1 Samuel 23:19-24

Then the Ziphites came up to Gibeah to see Saul, and said, Is not David living secretly among us in the strong places in Horesh, in the hill of Hachilah to the south of the waste land

1 Samuel 24:11-12

And see, my father, see the skirt of your robe in my hand: for the fact that I took off the skirt of your robe and did not put you to death is witness that I have no evil purpose, and I have done you no wrong, though you are waiting for my life to take it.

1 Samuel 26:1-25

And the Ziphites came to Saul at Gibeah, and said, Is not David waiting secretly near us in the hill of Hachilah, before the waste land?

Psalm 2:1-2

Why are the nations so violently moved, and why are the thoughts of the people so foolish?

Psalm 21:11

For their thoughts were bitter against you: they had an evil design in their minds, which they were not able to put into effect.

Psalm 62:3

How long will you go on designing evil against a man? running against him as against a broken wall, which is on the point of falling?

Psalm 64:5-6

They make themselves strong in an evil purpose; they make holes for secret nets; they say, Who will see it,

Proverbs 12:20

Deceit is in the heart of those whose designs are evil, but for those purposing peace there is joy.

Hosea 7:6

For they have made their hearts ready like an oven, while they are waiting secretly; their wrath is sleeping all night; in the morning it is burning like a flaming fire.

Micah 2:1-3

A curse on the designers of evil, working on their beds! in the morning light they do it, because it is in their power.

Nahum 1:11

One has gone out from you who is designing evil against the Lord, whose purposes are of no value.

Treasury of Scripture Knowledge

Summary

Which imagine mischiefs in their heart; continually are they gathered together for war.

General references

Bible References

Continually

Psalm 56:6
They come together, they are waiting in secret places, they take note of my steps, they are waiting for my soul.
1 Samuel 23:19
Then the Ziphites came up to Gibeah to see Saul, and said, Is not David living secretly among us in the strong places in Horesh, in the hill of Hachilah to the south of the waste land
1 Samuel 24:11
And see, my father, see the skirt of your robe in my hand: for the fact that I took off the skirt of your robe and did not put you to death is witness that I have no evil purpose, and I have done you no wrong, though you are waiting for my life to take it.

General references

Proverbs 24:2
For the purposes of their hearts are destruction, and their lips are talking of trouble.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain