'Alter' in the Bible

He shall not alter it, nor change it, a good for a bad, or a bad for a good: and if he shall at all change animal for animal, then both it and that for which it is changed shall be holy.

Also I have made a decree, that whoever shall alter this word, let a beam be pulled out from his house, and let him be lifted up and fastened thereon; and let his house be made a dunghill for this:

and the God who has caused his name to dwell there overthrow all kings and peoples who shall put forth their hand to alter [the same], to destroy this house of God which is at Jerusalem. I Darius have made a decree; let it be done with all diligence.

I will not break my covenant, nor alter what my lips have uttered.

Now, O king, establish the decree, and sign the writing, that it not be changed, according to the law of the Medes and Persians, which doesn't alter.

Then they came near, and spoke before the king concerning the king's decree: Haven't you signed an decree, that every man who shall make petition to any god or man within thirty days, except to you, O king, shall be cast into the den of lions? The king answered, The thing is true, according to the law of the Medes and Persians, which doesn't alter.