Cyrus took Babylon with a policy of tolerance, protecting the city's temples and its patron god Marduk rather than sacking it, which won over the Babylonian population.

90:03the Esagil. There was no interruption of whatever  rites in the Esagil and the other temples, and no ritual date was missed. There was peace in the  city when Cyrus spoke greetings to all of Babylon. The gods of Akkad that Nabonidus had brought to  Babylon returned safely to their cult places. All of this signaled that Cyrus  wanted to promote an image of himself as a very different kind of  ruler to those who had come before.

90:41When he arrived, Cyrus found Babylon full of  captured peoples who had been seized from their lands in far-flung provinces and forced  to relocate to the city, and remarkably, one of his first decrees as the ruler of  Babylon was to allow all of these peoples, if they wished, to return home. These  people came from all over the empire. Elamites and Medes from the Zagros, Aramaeans from  Syria, Phoenicians from cities like Tyre and Sidon,

91:17even Egyptians and Arabs. But most famously,  they also came from the Hebrew kingdom of Judah. The Hebrew Bible recalls this event. Now in the  first year of Cyrus, king of Persia, he made a proclamation throughout all his kingdom, and put  it also in writing, saying, "Thus saith Cyrus, king of Persia, the Lord God of heaven hath  given me all the kingdoms of the earth. Who is there among you of all his people? His God  be with him, and let him go up to Jerusalem."

91:59Like the people of Babylon with Marduk, the  Judeans interpreted Cyrus as having been chosen by their god Yahweh to set them free.  Cyrus might have calculated that sending back these few thousand deportees would improve  his reputation around his new empire, but he couldn't have predicted quite how long  or how far this act of kindness would be remembered. Since the Hebrew Bible would form  the basis for the future Christian religion,