Well, I wasn't sure how compatible panentheism and a NT biblical event are. Can you explain more how it makes more sense? It is all new to me.
Speaking in tongues is not unique to the NT, even though modern charismatics like to call their's genuine and all other religion's experiences as counterfeit, for some reason. It's religious ecstasy, and leads to deeper states of spiritual connection.
How panentheism makes more sense is because traditional theism places God outside creation, removed and separate from it. Pantheism is the opposite and says God is completely immanent and not transcendent to creation at all. It makes God present in everything, as everything itself. It removes transcendence from God in a 3rd person "it" perspective. Where panentheism works better, I feel, is that it allows God to be both wholly transcendent to creation, and wholly immanent within it. It allows a 2nd person relationship of the holy other, the Thou of a personal 2nd person relationship, and the God is also present within all things, that we can know God through creation as well.
The Trinity doctrine is very much this. Rather than it being some transcendent deity of three co-equal members, it is instead a dynamic outflow into the world, while wholly transcendent to it. The Logos of John 1, is the expression of this transcendent emptiness in subtle form as Manifestation, which was realized in human form as an incarnation of this transcendence. In other words, Emptiness, or Ground of Being, or Source, made known in the flesh. This is both transcendent, and immanent, or panentheistic in nature. From the One to the many, from the many to the One.