God speaks to people in diverse ways. It is evidence that He is God, that He is a living God and not one made by the hands of people out of stone or wood which cannot speak or move. God is the only God. He has created the heavens and the earth and everything in them. God desires to be with his people whom he has created for his own pleasure because God is love and love desires to have others to love, to be with, to have deep friendship with, to be known and trusted and loved in return but "men made strange and none the longed for Christ would know".
In Chapter 41, Pharoah dreams two dreams in one night. None of the wise men of the kingdom can explain what his dream means but Pharoah's butler remembers two years after he was released from prison that a young man, a Hebrew, had interpreted the dream that he and the Pharoah's baker had dreamed and his interpretation was true as events came about just as he had said in the explanation of the dreams they had.
As with prophesy, a true speaking is known in the coming true of what has been spoken.
Notice the accuracy in the Pharoah's telling of his dreams, for in each repetition he tells with the same words what he dreamed and how visually vivid the dream was. As with Nebuchadnezzar, the King of Babylon, centuries later, the dream is very disturbing and will give the Pharoah no rest till he has understood what it means.
It was known by the Hebrews and the Egyptians that these vivid and clear dreams have meaning and some interpretations are readily known by those who hear the dream spoken of as Joseph's brothers knew that the dream that Joseph had and told his brothers of in which 11 sheaves of corn bowed down to Joseph's sheaf meant that they would bow down to Joseph which they hated as he was the youngest brother apart from Benjamin and still a youth when he told them this dream he had had.
God is also Lord of the history of mankind. While He does not intervene in the lives of people unless asked in prayer and relationship to do so, He is steering humanity towards His future with his intention always being to show rulers and kings that He is the only Lord and their response must be to recognise this and bow down to him in humility. Psalm 2 Philippians 2 among many places show this.
Evil opposes God and will continually put thoughts into the minds of the human beings and bring about, through willing susceptible minds, through those who are not on guard nor aware of such thinking being evil, destruction and murder and lies and violence and disorder of every kind among human beings.
We will not listen to God nor are we naturally people of peace and thus wars and violence between peoples break out to the great deep sorrowing grief of God who is God of peace and love and rightful order. He knows that only obedience to His teaching and His will overcomes such evil and He reaches out continually but people stop up their ears and will not listen nor obey.