God didn’t make one color. He made a spectrum. Take the hint.
One of the great discoveries of modern physics is something our eyes have always known. Light — pure, radiant light — is not simple. It is composite. Pass it through a prism, and what was invisible becomes visible: red, orange, yellow, green, blue, violet. The light doesn’t change. Only now can you see what was always there.
We call this a spectrum. The Torah calls it a rainbow.
נְתַתִּי אֶת-קַשְׁתִּי בֶּעָנָן — “I have set My rainbow in the cloud.” (Bereishis 9:13)
After the flood, after the waters recede and Noach steps onto a ravaged earth, God offers a covenant. Not a contract written in ink, but a sign written in light. But why a rainbow? Of all the signs God could have chosen, why this particular convergence of light and water?
Because a rainbow is not one thing, it is many things, side by side, each occupying its own place, each necessary to the whole. Remove the red, and it is not a rainbow. The beauty is inseparable from the diversity.
The flood came because the world had lost its structure — every boundary dissolved, every distinction erased. And so the sign of the new covenant is not a sword or a fortress. It is a rainbow—a reminder that peace is not the absence of distinction but the harmony of distinctions held together.
The Kabbalists took this further. In Jewish mysticism, the rainbow symbolizes the divine middos — Chesed, Gevurah, Tiferes, and the rest — each a distinct quality, each its own color in the divine spectrum. They appear separate. But they are all expressions of the infinite. Separate, but actually one. The colors do not compete. They complete.
At the end of Yaakov’s life, he gathers them all together and blesses them. Every tribe. every type. Yehuda, the leader, and Binyamin, the beloved. Yissachar the scholar and Zevulun the merchant. Yaakov could have blessed each son privately, but he did not. He specifically wanted each tribe present for every other tribe’s blessing — wanted Yehuda to hear what Yissachar received, wanted them to know, standing in the same room, that their brother’s blessing was different from their own and not theirs to have.
This was itself a kind of blessing, because it is easy to mistake your own gift for the only gift. The scholar assumes the merchant is spiritually shallow. The merchant assumes the scholar is practically useless.
Yaakov knew otherwise. His last lesson was to teach his sons that Israel doesn’t need you to be someone else. It needs you to be unreservedly yourself. Reuven has something Yosef does not. Yosef has something Reuven does not. And the nation needs both.
We live in a world tempted to flatten — to reduce the spectrum to a single color for the sake of efficiency or ideology. And we live, on the other side, in a world tempted to let the colors separate entirely, every tribe turning inward, blessing only itself.
The rainbow is the third way. Not flattened, not fractured. Distinct and harmonious. Each in its place, each irreducible. That is what Yaakov saw when he looked at his sons that last time — not a crowd, not a blur, but twelve faces, each unmistakably itself, each unmistakably his.
And together — only together — making light.