Isaiah Who Saw Creation Before It Was Finished
Isaiah saw the heavens stretched like a curtain and mountains breaking into song. The rabbis read him as proof that creation never stopped responding.
The heavens were not hung up like a painting. They were stretched out like a tent, or a scroll, or a curtain still being drawn. This is the image Pirkei DeRabbi Eliezer, the early medieval midrash compiled around the eighth or ninth century, takes from Isaiah 48:13. "my right hand hath spread out the heavens". and treats as the governing metaphor for what creation actually was: not a completed event but a gesture held in place by ongoing divine attention.
According to Pirkei DeRabbi Eliezer, God stretched the heavens with His right hand and founded the earth with His left, simultaneously. Not one before the other. Both at once, the way a tent is pitched: you do not raise one pole and then put up the canvas; the whole thing goes up together or it falls. Isaiah's vision of the heavens stretched like a curtain is not poetic decoration. It is a report from someone who saw the mechanics. The heavens were finished. the original act was complete. but finished here means only that the initial gesture reached its end. God's presence still fills both, as Isaiah 66:1 insists: heaven is the throne, earth is the footstool. The furniture is still in use.
What happens when a creation that is not finished being made discovers it can praise? The Sifrei Devarim, the tannaitic legal midrash on Deuteronomy compiled in the second and third centuries, takes up this question through another of Isaiah's visions. Isaiah 44:23 announces that the heavens themselves sing: "Sing, O heavens, for the Lord has wrought; shout for joy, foundations of the earth!" And Isaiah 55:12 adds that mountains and hills will break out in song, and all the trees of the field will clap their hands. The Sifrei does not treat this as metaphor. It treats it as a description of what actually happens when justice is done in the world. the entire created order responds to it, the way a curtain ripples when someone opens a window.
But Isaiah's vision of cosmic praise is always paired, in the midrashic reading, with his insistence on justice. This is where Shemot Rabbah, the fifth-century midrash on Exodus, enters the conversation. Section 30 of Shemot Rabbah begins with Isaiah 56:1. "Maintain justice and perform acts of charity, for My salvation is soon to come". and builds an argument across several pages about what it means for the heavens to sing. God leaves the heavens and rests the divine presence with a truthful judge. When a judge shows favoritism, God withdraws. The angels notice the gap and ask what went wrong. God answers: I saw the judge showing favor, so I left. The heavens sing when justice is present. They go quiet when it isn't.
The Shemot Rabbah is not primarily about cosmic mechanics. It is about what it takes to keep the singing going. And it uses Isaiah's dual command. justice and charity together. to argue that neither is sufficient without the other. Justice without charity is cold. Charity without justice is sentimental. Together, they recreate the conditions under which God chose to stay near.
Isaiah himself stands between the two images. On one side: the heavens stretched out, the mountains prepared to sing, the trees waiting to applaud. On the other: a judge in a courtroom, and God watching from behind the bench to see whether to stay or leave. The prophet who saw the curtain being drawn was also the prophet who warned that the curtain could be pulled back. These were not two different messages. They were two registers of the same one.
There is one more piece of this that the Sifrei Devarim preserves and that most readers of Isaiah miss. When Isaiah says the nations will praise Israel for its faithfulness, he is not describing a distant messianic moment. He is describing the structure of witness built into the universe from the beginning. The heavens and earth were created as witnesses. Moses invoked them as witnesses at the end of Deuteronomy: "I call heaven and earth to witness against you today" (Deuteronomy 30:19). The mountains and trees that Isaiah has singing were present at Sinai, and they will be present at the end. The creation that was stretched out on the first day is still being stretched. The curtain has not been drawn back. The song has not stopped. Isaiah's vision is not poetry about a far-off redemption. It is a report from inside an ongoing event.
The midrash collections gathered around Isaiah because he is the prophet most willing to say that the cosmos is responsive. Not just created and then finished. Responsive. The mountains do not sing because someone composed a melody for them. They sing when the creation has gone right, when justice runs down like water and charity fills the spaces that law cannot reach. Isaiah saw this in vision. The rabbis read it in practice. The trees have been waiting to clap their hands for a long time.