Genesis 49:14 in the King James Version
Issachar is a strong ass couching down between two burdens:
Context
13 “Zebulun will dwell at the haven of the sea. He will be for a haven of ships. His border will be on Sidon.
14 “Issachar is a strong donkey, lying down between the saddlebags.
15 He saw a resting place, that it was good, the land, that it was pleasant. He bows his shoulder to the burden, and becomes a servant doing forced labor.