'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 beast for beast, then both it and that for which it is changed shall be holy.

Also I have made a decree, that whosoever 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 that hath caused his name to dwell there overthrow all kings and peoples that 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.

My covenant will I not break, Nor alter the thing that is gone out of my lips.