By faith, even though Sarah herself was barren and he was too old, ¹  he received the ability to procreate, ²  because he regarded the one who had given the promise to be trustworthy.

Rather, he must acknowledge the son of the less loved ¹  wife as firstborn and give him the double portion ²  of all he has, for that son is the beginning of his father’s procreative power ³  – to him should go the right of the firstborn.