Let the Bible speak for itself:

John 1:1 "In the beginning was the word and the word was with God and the word was God."
In the first chapter of Genesis God speaks, and all things come into being. Read it, believe it, and be amazed and in awe!

God set rules to follow with this direction:
Deuteronomy 6:6&7 "And these words which I give you today shall be in your heart. You shall teach them diligently to your children, and shall talk of them when you sit in your house, when you walk by the way, when you lie down, and when you rise up."
Deuteronomy 8:3 "Man shall not live by bread alone but by every word that proceeds out of the mouth of God."

David knew the power of the word:
Psalm 119:11 "Thy word have I hid in my heart that I might not sin against thee."

So did Jesus'disciples:
Luke 24:32 "And they said to one another, Did not our hearts burn within us while he talked with us on the road, and while he opened the scriptures to us?"
Read on in your Bible that you may get to know God.