Throughout the Old Testament an untranslated word stands as a messenger and a mediator between the verb and and the direct object. This word is oddly spelled with the first and last letters of the Hebrew alphabet. It is transliterated "AT", reminding the reader that it is pointing at something.
In creation, God is not passive. In fact the natural laws have no creative ability whatsoever. The universe would not exist without the work of the one who is the first and the last, the author and finisher of the faith.
The aleph-tau is the equivalent of alpha-omega in the Greek alphabet. It is another way to say our creator is in control.