1)God has spoken to people many times throughout the Scriptures by means of dreams.
Joseph had a dream Genesis 37:5-10
And having been warned in a dream not to go back to Herod, they returned to their country by another route Matthew 2:12-22
And afterward,I will pour out my Spirit on all people. your sons and daughters will prophesy, your old men will dream dreams, your young men will see visions. Joel 2:28
2)God's will often revealed in dreams:
He said, "Listen to my words: When a prophet of the LORD is among you, I reveal myself to him in visions, I speak to him in dreams. Numbers 12:6
In a dream, in a vision of the night, when deep sleep falls on men as they slumber in their beds. Job 33:15
But there is a God in heaven who reveals mysteries. He has shown King Nebuchadnezzar what will happen in days to come. Your dream and the visions that passed through your mind as you lay on your bed are these Daniel 2:28.
3)God the only interpreter of Dreams:
I approached one of those standing there and asked him the true meaning of all this. So he told me and gave me the interpretation of these things. Daniel 7:16
I cannot do it," Joseph replied to Pharaoh, "but God will give Pharaoh the answer he desires Genesis 41:16
We both had dreams," they answered, "but there is no one to interpret them." Then Joseph said to them, "Do not interpretations belong to God? Tell me your dreams. Genesis 40:8
4)God Reveals in dream to warn about future troubles.
Abimelech warned not to sleep with Abraham's wife. Genesis 20:3-7
5)God answers for prayers in dreams.
At Gibeon the LORD appeared to Solomon during the night in a dream, and God said, ask for whatever you want me to give you 1 Kings 3:5-15
6)God warn us against certain decisions.
Don't have anything to do with that innocent man, for I have suffered a great deal today in a dream because of him." Matthew 27:17-19
7) You need to ask for Gods wisdom regarding your dream.
If any of you lacks wisdom, he should ask God, who gives generously to all without finding fault, and it will be given to him James 1:5
8) God always made the meaning of the dream clear, whether directly to the person, through an angel, or through a messenger.
The great God has shown the king what will take place in the future. The dream is true and the interpretation is trustworthy Daniel 2:45
In my dream I saw a vine in front of me, 10 and on the vine were three branches Genesis 40:5-11