Yes.
Heb 11:8 "By faith Abraham, when he was called to go out into a place which he should after receive for an inheritance, obeyed; and he went out, not knowing whither he went."
Heb 11:17 "By faith Abraham, when he was tried, offered up Isaac: and he that had received the promises offered up his only begotten son,"
Abraham's faith would have been dead if it did not have obedience. If Abraham had faith only, he would not have done the work of either leaving his land house and kindred nor the work of offering Issac and therefore could not be an heir to those promises.