Requisite
REQ'UISITE, adjective s as z. [Latin requiitus, from requiro.]
Required by the nature of things or by circumstances; necessary; so needful that it cannot be dispensed with. Repentance and faith are requisite to salvation. Air is requisite to support life. Heat is requisite to vegetation.
REQ'UISITE, noun That which is necessary; something indispensable. Contentment is a requisite to a happy life.
God on his part has declared the requisites on ours; what we must do to obtain blessings, is the great business of us all to know.