'Rash' in the Bible

“But if she marries while under her vows or if she has bound herself by a rash statement,

But if her husband disapproves of her [making her vow or pledge] on the day that he hears of it, then he shall annul her vow which she is under and the rash statement of her lips by which she bound herself; and the Lord will forgive her.

“For now it would be heavier than the sand of the sea;Therefore my words have been incoherent,

Do not be hasty with your mouth [speaking careless words or vows] or impulsive in thought to bring up a matter before God. For God is in heaven and you are on earth; therefore let your words be few.

The heart (mind) of those who act impulsively will discern the truth,And the tongue of the stammerers will hurry to speak clearly.

I will stand at my guard postAnd station myself on the tower;And I will keep watch to see what He will say to me,And what answer I will give [as His spokesman] when I am reproved.

traitors, reckless, conceited, lovers of [sensual] pleasure rather than lovers of God,

But they will not get very far, for their meaningless nonsense and ignorance will become obvious to everyone, as was that of Jannes and Jambres.