Whom - rather, “Which,” namely, “the land,” or “earth,” that is, the people of it [Maurer].
my people - the peculiar designation of Israel, the elect people, here applied to Egypt to express its entire admission to religious privileges (Rom 9:24-26; 1Pe 2:9, 1Pe 2:10).
work of my hands - spiritually (Hos 2:23; Eph 2:10).