Kabbalah zu Bereschit 1:1

In the beginning (Gen. 1:1).

What is the reason? Since the world endures by His Holy Name. This is the meaning of, "For Yah Hashem is an everlasting (lit. 'worlds') rock (Heb. tzur)" (Isaiah 26:4), the former (Heb. צַיָּיר) of worlds. For by two letters were the worlds created, this world and the World to Come. This world was created with Judgment and is maintained on Judgment. This is the meaning of, "In the beginning Elohim created" (Beresheet 1:1). The reason is so that people would conduct themselves according to judgment (law) and would not digress from the path.

At that time. The intention is to explain the end of the verse [In the beginning] God created [heaven and earth] (Gen. 1:1). The passage states, “At that time when he is dry and she is dry.” This indicates that after the emanation which had been deposited with it has been expended and no [further] emanation reaches it, the “river” will also be dry and parched. Thus “he is dry and she is dry.”