'Mischievous' in the Bible

Is there wrong in my tongue? cannot my taste discern mischievous things?

For they intended evil against thee: they imagined a mischievous device, which they are not able to perform.

Rest in Jehovah, and wait patiently for him: fret not thyself because of him that prospereth in his way, because of the man that bringeth mischievous devices to pass.

They also that seek after my life lay snares for me: and they that seek my hurt speak mischievous things, and imagine deceits all the day long.

And when one comes to see me, he speaks empty words,While his heart gathers malicious gossip [against me];When he goes away, he tells it [everywhere].

Thy tongue deviseth mischievous things, like a sharp razor, practising deceit.

A good man obtaineth favour of Jehovah; but a man of mischievous devices will he condemn.

He that is soon angry dealeth foolishly, and a man of mischievous devices is hated.

An evil doer is attentive to lips of vanity, Falsehood is giving ear to a mischievous tongue.

He that deviseth to do evil shall be called a mischievous person.

The beginning of the words of his mouth is foolishness: and the end of his talk is mischievous madness.

That they may do evil with both hands earnestly, the prince asketh, and the judge asketh for a reward; and the great man, he uttereth his mischievous desire: so they wrap it up.