"Hashem vayikach" is gibberish in modern Hebrew though. You'd have to change it to something like "lakach". In modern Hebrew it would be something like "Hashem

"Hashem vayikach" is gibberish in modern Hebrew though. You'd have to change it to something like "lakach". In modern Hebrew it would be something like "Hashem lakach ha'adam v'sam oto b'gan Eden..." The grammar required for "vayikach" to make sense is missing in modern Hebrew, which I remember being confusing even in elementary school. This isn't a niche case since a huge fraction of the Bible uses verbs like "vayomer". Also, the end of the sentence, while comprehensible, still feels very archaic. I don't think biblical Hebrew qualifies as an entirely separate language but I do think even beginners almost immediately sense the differences. It's like comparing modern English with Shakespearean English. Lastly, a note on pronunciation: the language used to span a huge phonemic range (roughly the same as Arabic), but we ended up dropping like a third of the sounds. So, sure, modern pronunciation of biblical Hebrew sounds like modern Hebrew. But that's kinda tautological.