His and their principles/values/morals (Righteousness) are immutable and eternal, but they are very much alive in that they can be applied to everything eternally. In fact, as we know, humans and the things they create which are not conformed to God's Righteousness die...so as God says, He is the only Way to real life--eternal life.
Also, as you said, the Constitution is written by man but inspired by God. Therefore it can and should be amended where we find that man has erred in conforming it perfectly to God and His Word.
One final note.
The Bible is also alive in that God speaks to us through it literally. He seems to inspire us as we read His Word...like the Bible is a living Transmitter of His Righteousness and Love.
Wow that was great.
I don’t have the words for posts like that and I love to read them
Very inspiring.
And true about the constitution.
Unlike the Bible, we CAN and DO add amendments to it.