Look unto Abraham your father, and unto Sarah that bore you: for I called him alone, and blessed him, and increased him.
Read Chapter 51
George Leo Haydock
Alone, and gave him children when he was grown old, and Sara barren. I can surely save you likewise. (Calmet)
The example of these great progenitors is set before the Jews. Thus St. Paul says: Remember your prelates, Hebrews xiii. (Worthington)
For the divine voice says somewhere in the prophecy of Isaiah, “Consider Abraham, your father, and Sarah, who gave you birth.” Scripture gives this admonition to those who wander outside virtue. Just as at sea those who are carried away from the direction of the harbor bring themselves back on a course by a clear sign, on seeing either a beacon light raised up high or some mountain peak coming into view, in the same way Scripture by the example of Abraham and Sarah may guide again to the harbor of the divine will those adrift on the sea of life with a pilotless mind. - "Life of Moses, Prologue 11"