An angel of the L‑rd appeared to him in a flame of fire from within the thorn bush, and behold, the thorn bush was burning with fire, but the thorn bush was not being consumed…And the L‑rd said further to him, "Now put your hand into your bosom," and he put his hand into his bosom, and he took it out, and behold, his hand was leprous like snow. And He said, "Put your hand back into your bosom," and he put his hand back into his bosom, and [when] he took it out of his bosom, it had become again like [the rest of] his flesh. (Exodus 3:2, 4:6-7)

This composition was originally two canvases that were later attached and integrated with each other. The painting of the golden red bush against a cool background, emerged by spilling watery paint on the canvas and then subtly directing the flow of color. The bush began shining out of puddles of pigment. The painting of Moses had remained unfinished for many years. It was only after the two canvases were connected, the light of the bush could spread and be reflected Mose's self-effacing figure.

While the bush burned with the spirit of G‑d, Moses pled and argued before he accepted G‑d's mission. Moses doubted that the people would believe him and asked for signs to prove to the others that his mission was actually from heaven. In one of these supernatural signs, Moses's hand became covered with leprosy and then healed. His white arm in the painting is a hint of the many coming miracles of exodus.