This might have been a mixed state. Mixed states make the management of bipolar I a challenge (not that it is not a challenge anyway!). You have grandiosity (God talking to you), which is manic, and you have suicidality, which is depressive. I personally have tried suicide in such states - it is not that God was telling me to kill myself, but the speed of my thoughts was manic (very rapid) while the content was depressed. I did not gain insight until much later in retrospect. For me personally such states are the most dangerous ones.