Are you aware of the concept of infinity? The egoic mind is what needs to break things into defined terms such as beginning/end..light/dark...good/bad...etc. This is duality consciousness at work projected out of the egoic mind (interference pattern applied to the whole).
Your idea of God has no beginning or end. Now expand that notion to where we are that God with the same infinite qualities. The seperateness is the illusion..a necessary one in order to experience our own creation.