'Subtilty' in the Bible

And he said, Thy brother came with subtilty, and hath taken away thy blessing.

Now therefore call unto me all the prophets of Baal, all his servants, and all his priests; let none be wanting: for I have a great sacrifice to do to Baal; whosoever shall be wanting, he shall not live. But Jehu did it in subtilty, to the intent that he might destroy the worshippers of Baal.

To give subtilty to the simple, to the young man knowledge and discretion.

And consulted that they might take Jesus by subtilty, and kill him.

And said, O full of all subtilty and all mischief, thou child of the devil, thou enemy of all righteousness, wilt thou not cease to pervert the right ways of the Lord?

But I fear, lest by any means, as the serpent beguiled Eve through his subtilty, so your minds should be corrupted from the simplicity that is in Christ.