Clearly No Distinction of Being Your core question is "Did the Synoptic writers intend to convey any distinction between διάβολος and σατανᾶς?" If by "distinction," you mean differing personalities (i.e. persons or beings), then I believe you have already answered your own question by noting th...

What were the Nephilim? They were simply "fallen ones", a descriptive way of saying "giant" fallen ones. The whole earth by chapter 6 had become fallen, but these were particularly of significance in size and symbolically were a representation of large the wickedness of man had become, "continua...