Not only on Hoshana Rabbah we should ask the Elohim to save us now. Each day of our life we should beseach the Most High:
Ana Adonai Hoshia’na,
We may count on it that those who call upon the Elohim His name will be saved.
“And everyone who calls on the name of the Lord will be saved; for on Mount Zion and in Jerusalem there will be deliverance, as the Lord has said, among the survivors whom the Lord calls.” (Joel 2:32; see also Romans 10:13)