Genesis 49:15

He saw that rest was good, And that the land was pleasant; He bowed his shoulder to bear a burden, And became a band of slaves.

Surrounding context

49:14 "Issachar is a strong donkey, Lying down between two burdens;

49:15 He saw that rest was good, And that the land was pleasant; He bowed his shoulder to bear a burden, And became a band of slaves.

49:16 "Dan shall judge his people As one of the tribes of Israel.