'Unstable' in the Bible
Unstable as water, thou art not abundant; For thou hast gone up thy father's bed; Then thou hast polluted: My couch he went up!
and they give to him seventy silverings out of the house of Baal-Berith, and Abimelech hireth with them men, vain and unstable, and they go after him;
Her prophets unstable -- men of treachery, Her priests have polluted the sanctuary, They have violated the law.
having eyes full of adultery, and unable to cease from sin, enticing unstable souls, having an heart exercised in covetousnesses, children of a curse,
as also in all the epistles, speaking in them concerning these things, among which things are certain hard to be understood, which the untaught and unstable do wrest, as also the other Writings, unto their own destruction.