en_tn/gen/39/21.md

and showed covenant faithfulness to him

"and was faithful to him because of the solemn promise he made to Joseph's ancestors."

He gave him favor

"Yahweh gave Joseph favor"

the prison warden

"the prison manager" or "the man in charge of the prison"

Whatever they did there, Joseph was in charge of it

"Joseph was in charge of everything they did there."

anything that was under his care

"anything that Joseph was in charge of"

Whatever he did, Yahweh prospered

"Yahweh prospered everything Joseph did."