What is The Truth to you?
Truth is the quality facts possess, facts being linguistic strings (sentences) that accurately map a piece of reality.
Let me be concrete:
I claim to live five blocks north and three blocks east of the pier. Is that true or not?
You can't tell from the words, can you? To confirm or disconfirm the truth of those words, you'd need physical evidence. You need to consult physical reality.
Let's do that. Walk five blocks south and three blocks east with me from my front door and see if we end up at the pier. If we do, my claim has been demonstrated to be true, that is, factual. If any other outcome ensues, my claim was not true.
There may be other truths that can't be shown to conform with reality, but if they in fact do map a piece of nature, then they are truths nevertheless, even if their truth status can't be confirmed..
It's not a difficult concept. People make it to hard, especially whrn they add qualifiers to truth like absolute truth and ultimate truth, whatever those are.
The truth is unchangeable
Many things are true today but false tomorrow, beginning with what day today and tomorrow are or will be. "Today is Monday" is true, but not for long. True statements needn't be unchanging to be truth.