Art Majcho Zmajcho Avraham sent Eliezer to fetch Rivkah at the earliest opportunity, as soon as she had reached marriageable age.   Eliezer's miracle - where his journey was miraculously shortened, allowing him to complete a 17 day journey in one day - thus spared Rivkah from spending an additional 17 days in an atmosphere of idol worship. From this we can be assured of the speed