Luke 2:19

And pondered them in her heart - Συμβαλλουσα, Weighing them in her heart. Weighing is an English translation of our word pondering, from the Latin ponderare. Every circumstance relative to her son's birth, Mary treasured up in her memory; and every new circumstance she weighed, or compared with those which had already taken place, in order to acquire the fullest information concerning the nature and mission of her son.

Mary kept all these things - All that happened, and all that was said respecting her child. She "remembered" what the angel had said to "her;" what had happened to Elizabeth and to the shepherds - all the extraordinary circumstances which had attended. the birth of her son. Here is a delicate and beautiful expression of the feelings of a mother. A "mother" forgets none of those things which occur respecting her children. Everything they do or suffer - everything that is said of them, is treasured up in her mind; and often she thinks of those things, and anxiously seeks what they may indicate respecting the future character and welfare of her child.

Pondered - Weighed. This is the original meaning of the word "weighed." She kept them; she revolved them; she "weighed" them in her mind, giving to each circumstance its just importance, and anxiously seeking what it might indicate respecting her child.

In her heart - In her mind. She "thought" of these things often and anxiously.