Rainbow flag in his hand. In the German Peasants' War of the 16th century, the rainbow flag together with the peasants' boot ("Bundschuh") was used as the sign of a new era, of hope and of social change. The choice of the rainbow in the form of a flag harkens back to the rainbow as a symbol of biblical promise. According to the Bible, God first created the rainbow as a sign to Noah that there would never again be a worldwide flood, also known as the Rainbow covenant. The South African flag is sometimes referred to as the "Rainbow flag". Rainbow
Noah in rabbinic literature about to come upon the earth. But the people heeded not his words, they mocked at him, and used vile language; and Noah suffered violent persecution at their hands (Sanhedrin 108a, b; Pirke de Rabbi Eliezer xxii.; Genesis Rabba 30.7; Leviticus Rabba 27.5; "Sefer haYashar," l.c.; see also Flood in Rabbinical Literature). According to one legend, God showed Noah with His finger how to make the ark (Pirke De-Rabbi Eliezer xxiii.); but according to the "Sefer Noah" (Adolf Jellinek, "B. H." iii. 155-160), Noah learned how to build it, and mastered as well the various sciences, from the "Sefer Razi'el"