Midrasz do Jeremiasza 31:2

And his sister stood from afar... - Why did Miriam stand from afar? Rabbi Amram said in the name of Rav: Because Miriam prophesied and said "In the future, Mother will give birth to a child that will be the savior of the Jewish people." When Moshe was born, the entire house was filled with light. [Miriam's] father arose and kissed her on the head. He [Amram] said to her [Miriam]: "My daughter, your prophecy has been fulfilled". That is what is said (Exodus 15:20) "And Miriam the Prophetess, the brother of Aharon, took the tambourine..." Was she only the brother of Aharon and not the brother of Moshe? Rather, she had stated that prophecy while she was the sister of Aharon and not (yet) the sister of Moshe. When they put him (Moshe) in the river, her mother arose and hit her on the head and said to her daughter: "My daughter, where is your prophecy!?" And this is why the verse says "And his sister stood by from afar", for she wanted to know what would be the results of her prophecy. And the Rabbis say the entire verse was said with the Divine Spirit. "And she stood" similar to (Samuel I 3:10) "And G-D came and stood". "His Sister" similar to (Proverbs 7:4) "Say to wisdom, she is your sister". "From afar" similar to (Jeremiah 31:2) "From afar G-D is seen to me". "To know what will happen to him" similar to (Samuel I 2:3) "For G-D is all knowing".

"And his sister stood back" - Why did Miriam stand back? Rabbi Amram said in the name of Rav: "Because Miriam had prophesied: 'In the future, my mother will give birth to a son who will save Israel'. When Moses was born, the whole house was filled with light; her father rose and kissed her on the head. He said to her: 'My daughter! Your prophecy has come to pass' - as it is written [Exodus 15:20]: 'And Miriam the prophetess, sister of Aaron, took up the timbrel.' [Why was she called] 'Sister of Aaron,' and not 'sister of Moses'?! Because when she issued her prophecy, she was [only] the sister of Aaron - Moses had not been born yet. When she cast him into the Nile, her mother rose and struck her on the head. She said: 'My daughter! What has become of your prophecy?!' This is why it is written 'his sister stood back etc.': in order to know would become of her prophecy. And our rabbis taught: This entire verse speaks [not of Miriam, but] of the Holy Spirit. 'And she stood...' refers to 'The LORD came and stood...' [I Samuel 3:10]; '[His] sister' refers to 'Say to Wisdom: "You are my sister"' [Proberbs 7:4]. 'Back' refers to 'The Lord appeared to me from far back' [Jeremiah 31:3]. 'In order to know what would happen to him' refers to 'For the LORD is a God of knowledge.' [I Samuel 2:3]".

(Fol. 11) "And so also do we find concerning good deeds — Miriam," etc. How do you compare both things? Miriam was waiting only a short time while Israel waited seven days. Said Abaye [read the Mishnah] and concerning good deeds it is not so [because it is paid more than deserving.] "But the Mishnah reads and so also concerning good deeds," Raba objected. "We must therefore read," said he: "So also concerning good deeds [that with the same measure one measures to others, who will receive it in reward]; however, there is a rule that the measure of good reward is far superior to the measure of evil dispensation." (Ex. 2, 4) And his sister placed herself afar off, to ascertain what would he done to him. The entire passage refers to the Shechina, and she placed herself, as it is written (I Sam. 3, 10) And the Lord came and placed Himself, and called as at previous times: His sister, as mentioned (Pr. 7, 4) Say unto wisdom thou art my sister: From afar is the Lord appeared to me; to ascertain herself, as it is written (I Sam. 2, 3) for a God [De'oth] knowledge is the Lord: Mah, as it is written (Deut. 10, 12) What [Mah] doth the Lord thy God require of thee; would be done. Ya'asse, as it is said (I Sam. 25, 28) Will certainly make (Ya'asse) for my Lord an enduring house to him. — Loh, as it is written (Jud. 6, 23) And he called it loh Adonei Shalom.

Said R. Jose b. Chanina: "Four decrees did Moses decree upon Israel, and four prophets came and abolished them. Moses said (Deut. 33, 28) And Israel dwelt in safety, the fountain of Jacob alone. Amos, however, abolished it, as it is said (7, 5) I beseech Thee; How should Jacob stand? For he is small. Then immediately in (Ib. 6) The Lord bethought … this also shall not be. Moses said (Deut. 28, 65) And among these nations shalt thou have no repose. Jeremiah came and abolished it, as it is written (31, 2) Even Israel, when I go to cause him to rest. Moses said (Ex. 34, 7) Visiting the iniquity of the fathers upon the children. Ezekiel, however, came and abolished it, by saying (18, 4)The soul that sinneth, it shall die. Moses said (Lev. 26, 38) And ye shall perish among the nations. Isaiah came and abolished it by saying (27, 13) And it shall come to pass in that day, that a great horn shall be blown; and they shall come that were lost in the land of Assyria, etc." Rab said: "I am [nevertheless] afraid of the passage, Ye shall be lost among the nations," whereupon R. Papa remarked: "Perhaps this means like a lost article, which is looked after by the owner, as the passage says (Ps. 119, 176) I have gone astray like a lost sheep; seek Thy servant." We must say that he refers to the end of same, The land of your enemies shall consume you. Mar Zutra, and according to others, R. Ashi, opposed this, contending that it may refer to the consummation of pumpkins and cucumbers [which are only eaten partly].