Two or more applicants cannot depose to a single combined affidavit in support of a court application. An affidavit takes the place of oral evidence, and just as two witnesses cannot testify simultaneously in oral evidence, two persons cannot make one affidavit. The High Court Rules (Rules 227(4), 230, and 234) provide for "one or more affidavits," meaning each deponent must make a separate affidavit. A combined affidavit is improperly deposed to and constitutes a defective founding affidavit. Since the founding affidavit is the basis of a court application, a defective founding affidavit means there is no proper application before the court, warranting the application being struck off the roll.