DouayRheims(i)
13 For God making promises to Abraham, because he had no one greater by whom he might swear, swore by himself,
14 Saying: Unless blessing I shall bless thee and multiplying I shall multiply thee.
15 And so patiently enduring he obtained the promise.
16 For men swear by one greater than themselves: and an oath for confirmation is the end of all their controversy.
17 Wherein God, meaning more abundantly to shew to the heirs of the promise the immutability of his counsel, interposed an oath:
18 That by two immutable things in which it is impossible for God to lie, we may have the strongest comfort, we who have fled for refuge to hold fast the hope set before us.