The Lord, in the simplest terms, is love itself expressed as wisdom itself. In philosophic terms, love is the Lord's substance and wisdom is His form. Of course, we feel the Lord's love and hear His wisdom in many different ways, depending on our state in life and how receptive we are. That's why the Lord has so many different names in the Bible, and is referred to in so many different ways.

7009. 'And it will happen, that he will be for you as a mouth' means the truth contained in doctrinal teachings, which also goes forth from the Lord in an indirect way. This is clear from the representation of Aaron, who 'will be for Moses as a mouth', as doctrinal teachings, dealt with in 6998; and from the meaning of 'being for Moses as a mouth' as the utterance or declaration of it, dealt with in 6987. The reason why the words of explanation are 'the truth contained in doctrinal teachings, which also goes forth from the Lord in an indirect way' is that the truth contained in doctrinal teachings, which 'Aaron' represents, is the kind of truth that can be heard and discerned by angels and by men. Such truth is what goes forth in an indirect way from the Lord. But the kind of truth that is represented by 'Moses' goes forth directly from the Lord, and cannot be heard or discerned by men, nor even by angels, see 6982, 6985, 6996, 7004.