Truth, or Opinion?
I would suggest to you that the word truth in the phrase “Truth to him” has replaced the word opinion. Think about it. How long ago did dinosaurs live? Most would say millions of years ago. Some would say only a few thousand. Well, we can have our opinions all we want, but there is only one reality. If they lived millions of years ago, then those who say they lived only thousands of years ago are wrong, no matter how “true” it is to them, and vice versa. Who did Abraham almost sacrifice on Mt. Moriah? Was it Isaac, or Ishmael? If you say “Isaac is true to Jews and Christians, and Ishmael is true to Muslims,” you have a problem. One (or possibly both) of these truths are wrong, no matter how strongly it’s believed. And truth, by definition, can’t be wrong. If you think it can, then you’ve changed the definition of truth – that truth can be an idea, either right or wrong. I would submit to you that you don’t need to define truth that way, because we already have a word with such a definition; it’s the word opinion. Truth is a description of reality; opinion is what one thinks about reality, which may or may not be accurate.
The other word that has replaced another is the word to. It has replaced the word of. Suppose two blind men knock on my door. One of them thinks I am kind and generous and will open my door; the other doesn’t; in fact, he is sure I will pretend to open the door but really leave it closed so he’ll walk into it and bonk his nose. So I open my door to them, and invite them in. The first blind man thinks I’ve opened the door (which I have), the second thinks it’s a trick. However, the door is open to both of them. It is true that I’ve opened the door to them; therefore, it is true to both of them, even though one of them believes strongly that it isn’t true! However, he has an opinion, and his opinion belongs to him. That is, it is of him. His belief that I’ve kept the door closed isn’t “true to him,” it’s “an opinion of him,” or less awkwardly, it’s “his opinion.”
Why the word of and not the word to? Because to suggests interaction. The truth, that is reality, is the situation we face whether we realize it or not. If the situation is that God created the world, and he created people to interact a certain way when it comes to love, marriage and families, then that reality is true to us whether we acknowledge it or not. If God has given us answers in His Word (the Bible) about who he is and how we relate to him, then those answers are “true to us” whether we agree or whether we decide to find our answers elsewhere. Therefore, the phrase, “truth to him,” should not be used synonymously with “his opinion,” because the truth is independent of our thoughts and the truth’s implications apply to everyone equally.
Just from my own observations, belief in relative truth seems to depend heavily on arguments that are semantically flawed. First, the difference between truth and opinion has been confused because one word is used when, really, the other should be used. Then, the function of truth (that is, that it is objective and applies to everyone alike) is confused because the word to is used instead of the word of. But as I said, these are the thoughts I have about the matter from my own observations; there could be more to this. I would gladly welcome others' thoughts and discussions!