Deuteronomy 31:20
For when I shall have brought them into the land which I swore to their fathers, that flows with milk and honey; and they shall have eaten and filled themselves, and waxen fat; then will they turn to other gods, and serve them, and provoke me, and break my covenant.
Torrey's Topical Textbook—AKJV

Deuteronomy 32:15
But Jeshurun waxed fat, and kicked: you are waxen fat, you are grown thick, you are covered with fatness; then he forsook God which made him, and lightly esteemed the Rock of his salvation.
Torrey's Topical Textbook—AKJV