Rashi explains that Hashem gave her this honor because of the one hour which she waited for Moshe when he was cast into the river. Her waiting for Moshe was simply to find out what was going to happen to him. Does this act deserve such a significant reward? There is a deeply religious thought stated by Rabbi Yecheskel Abramsky Zt”l regarding the concept of “waiting” which will clarify this question. It is stated that when man will face his ultimate judgement before Hashem, he will be asked “Did you wait for salvation?”. The implication of this question is, did he constantly expect Moshiach’s arrival? He notes from the specific wording of this question “did you wait” as opposed to “did you hope”, that there is a very distinct and unique meaning to “wait.” One who “waits” for moshiach clearly believes in moshiach’s arrival. He “waits” diligently for his imminent advent. He doesn’t “hope”; he knows! This concept can also be applied to Miriam. Her waiting for Moshe was not one of fear, hoping and praying for his safety. She was sure and secure in her belief that Moshe’s welfare was in Hashem’s hands; she waited to see how this salvation would transpire. Her waiting was one of ultimate belief in Hashem. For this she was rewarded in having all of Klal Yisroel wait for her.
