Albert Barnes on John 7:35

The dispersed among the Gentiles. To the Jews scattered among the Gentiles, or living in distant parts of the earth. It is well known that at that time there were Jews dwelling in almost every land. There were multitudes in Egypt, in Asia Minor, in Greece, in Rome, &c., and in all these places they had synagogues. The question which they asked was whether he would leave an ungrateful country, and go into those distant nations and teach them.

Gentiles. In the original, Greeks. All those who were not Jews were called Greeks, because they were chiefly acquainted with those heathens only who spake the Greek language. It is remark able that Jesus returned no answer to these inquiries. He rather chose to turn off their minds from a speculation about the place to which he was going, to the great affairs of their own personal salvation.

(e) "dispersed" Isa 11:12, Jas 1:1, 1Pet 1:1 (3) "Gentiles" or, "Greeks"