Speak with the Voice of God or don't speak at all. The Voice of God does not judge, does not condemn. It comes from Love, not fear, it is compassionate, it is fully engaged and present. If you don't know yet when God is speaking through you, ask in each conversation, each moment, to be shown the difference. If you are not sure, it is better to say nothing. As you begin to discern the difference, you will deepen your relationship with Him and feel His Presence in and through you at all times.