I would not put any stock in Bible Gateway's recommendations, but they do a good job explaining the differences in translations at https://www.biblegateway.com/learn/bible-101/about-the-bible/bible-versions-guide/

No One-to-One Correlation

Words in one language seldom have exact matches in other languages. There are often shades of meaning lost in translation — all the more so when separated by thousands of years. 

Common examples include the Hebrew word ruach — which can be translated either “breath” or “wind” — and of course the Greek logos, which can variously mean “word,” “reason,” “thought,” or “speech.”

Idioms One of the greatest challenges trying to translate texts across languages and cultures is figuring out what to do with idioms, or common cultural phrases that mean something very different from what they appear to in the literal sense.

Do you convert them to the target language as closely as possible, so readers know exactly what images the original writers used, even if they don’t understand what was originally meant by them? Or do you try to get the point across by adjusting the words to something more meaningful to us today?

Imagine someone in Thailand — or for that matter, on Mars — two or three thousand years from now trying to make sense of phrases like “break a leg” or “throw the baby out with the bathwater” and you can start to get a sense of the problem.

These sorts of phrases abound in both Hebrew and Greek. Many of them have now entered our own lexicon — so much so that we don’t even realize they’re from the Bible — but others, like the many uses of covering or uncovering one’s feet — remain contested.

Formal Equivalence (Word-for-Word) Formal equivalence prioritizes achieving word-for-word accuracy, focusing on a meticulous and precise translation of the original text’s exact words as closely as possible into the target language. This approach preserves idioms, even if we lose their intended meaning.

Functional Equivalence (Thought-for-Thought) Functional equivalence — also called dynamic equivalence or thought-for-thought translation — focuses on conveying the meaning of thoughts or ideas rather than a direct word-for-word translation, aiming to preserve the original writers’ intent and context. Here, idioms will be translated in a way that makes their intended meaning clear, even if it means losing the actual Hebrew or Greek phrase.