Matthew Poole and continuators on Genesis 40:3

3 And he put them in ward in the house of the Captain of the guard , into the prison, where Joseph was bound .

To wit Potiphar, Gen. 37. 36. who being informed by his underkeeper of Iosephs great care and faithfulness began to have a better opinion of him, though for his own quiet and his Wives reputation he left him still in the prison.

Was a Prisoner, as that word is used, Isa, 22. 3. For Ioseph, being now made Governour of the Prisoners, was doubtless freed from his bonds: Or, had been bound, and that with Irons in a cruel manner, Psal. 105. 18.