Just for the case, that this is meant to some extent (semi)serious, i am very, very far away from the irreligious&irrational monism&determinism of SPINOZA (who was solemnly excommunicated by His Jewish community, by the way).
As a scepticist a la AUGUSTINE, DESCARTES, HUME, KANT i do neither know nor care, whether SPINOZA's substantiae exist (let alone, that i would confuse the natura naturans with the supraNatural).
But like the pagans (PLATO!) we real Christians detect GOD in the verum&pulchrum&bonum (just, that contrary to the pagans we conclude from these ideas/values to their common origin).
In short: ontological idealism, axiological realism.