11 But we do [strongly and earnestly] desire for each of you to show the same diligence and sincerity [all the way through] in realizing and enjoying the full assurance and development of [your] hope until the end,
12 In order that you may not grow disinterested and become [spiritual] sluggards, but imitators, behaving as do those who through faith (by their leaning of the entire personality on God in Christ in absolute trust and confidence in His power, wisdom, and goodness) and by practice of patient endurance and waiting are [now] inheriting the promises.
13 For when God made [His] promise to Abraham, He swore by Himself, since He had no one greater by whom to swear,
14 Saying, Blessing I certainly will bless you and multiplying I will multiply you. [Gen. 22:16, 17.]
15 And so it was that he [Abraham], having waited long and endured patiently, realized and obtained [in the birth of Isaac as a pledge of what was to come] what God had promised him.
16 Men indeed swear by a greater [than themselves], and with them in all disputes the oath taken for confirmation is final [ending strife].
17 Accordingly God also, in His desire to show more convincingly and beyond doubt to those who were to inherit the promise the unchangeableness of His purpose and plan, intervened (mediated) with an oath.