Predestination…No ability to control the outcome. Free will…Some ability to control the outcome based on the choices you make. Foreknowledge…God knows what is going to happen before it happens even if it’s our choice.
God talks because he is declaring his purpose. He is available. He knows you are not worthy but that will not make God change. This id the study of the father who has a voice and wants to speak to you.
They (Adam & Eve) heard the Voice of God. Up until the fall God had been interacting with man and speaking. Creative power is released when we speak. The Spirit of God came and God Spoke.