In these verses Allah tells Muslims how important it is to be united and points to their condition before Allah sent the Holy Prophet Muhammad (s) with His revelation. But this unity is not to be for political advantage or economic convenience. The unity has to be based on principles and that is what the reference to the “covenant of Allah” means. But this has to be taken together with other injunctions of the Holy Quran such as matters being decided by mutual consultations.
Please note that the first 10 seconds of this podcast is silent.