Do the first occurrences of words in the Vulgate carry literary significance?
While reading the Vulgate and learning Latin, I began to pay attention to the first occurrences of certain words. For example, the first occurrence of MATER is in Heva: "mater cunctorum viventium" (Genesis 3:20), but the first occurrence of PATER refers to Jabel, the Father of Shepherds in Genesis 4:20, while Adam is never mentioned as PATER.
I also found it interesting that when Dominus Deus uses QUIS, he is trying to find out who was responsible for inducing Adam's sin (Genesis 3:11 Cui dixit: Quis enim indicavit tibi quod nudus esses?...). And from the moment he uses QUID for Cain, the man is responsible for his own sins (Genesis 4:10. Dixitque ad eum: Quid fecisti?...).
Am I overinterpreting these first occurrences, or is it a legitimate literary observation?