Jesus’ work reconciled cultures, for sure, but I think you are giving too much credit to language for shaping thought. It is a chicken and egg argument. Do cultures develop along certain lines because they have a certain language to describe their reality, or do they describe their reality in certain ways because they are culturally disposed to? Most linguists think languages develop to meet the needs and reflect the values of the culture, not vice, versa. The strong version of the Sapir-Whorf hypothesis of linguistic relativity has been largely discredited. Ask A Linguist FAQ: The Sapir-Whorf Hypothesis
“Absolute truth” is a concept. It is totally irrelevant what the etymology of the word “absolute” is if we are talking about “what do people mean by absolute truth” because the etymology of an adjective is not what constructs concepts. Words are arbitrary signs with agreed upon ranges of meaning determined by the community of users of the language. Words don’t have any inherent objective meaning in and of themselves. If nobody uses words the way you do, you can’t say you have some secret insight into what words really mean.
You are confusing words and referents though. The referent (the real person Roger, the real being God) is not always an abstraction, but the phonetic label that constitutes the English word is an arbitrary symbol. The words themselves are meaningless unless you have two people using the same word to refer to a common referent. I think it is often hard to communicate with you because you decide words refer to referents no one else agrees they refer to.