Imrei Baruch: Chesed and mitzvot aren't just about doing the mitzvah but about the way in which it's done.

Beit HaLevi explains how Eliezer's test demonstrated her chesed and wisdom.

When Sarah heard Yitzchak almost died in the ultimate act of serving Hashem, she was in shock not because he almost died but because she didn't get to participate in this ultimate test. Why didn't Hashem include Sarah?

Vilna Gaon: What does "זקן בא בימים"mean?