Jesus said 'The Kingdom of God is within you'.
Once Jesus was asked by the Pharisees when the kingdom of God was coming, and he answered, ‘The kingdom of God is not coming with things that can be observed; nor will they say, “Look, here it is!” or “There it is!” For, in fact, the kingdom of God is among you.’ Luke 17:20-21 NRSV
And when he was demanded of the Pharisees, when the kingdom of God should come, he answered them and said, The kingdom of God cometh not with observation: neither shall they say, Lo here! or, lo there! for, behold, the kingdom of God is within you. Luke 17:20-21 KJV
Now this is clearly a theological statement. As is, I might say, the sentence that reads "Jesus gave us the Gospel of the Kingdom, saying it was why He was sent. Not words about God, but words from God." However given our mutual assertion of the Divinity of Jesus (another theological statement) it would seem that any words from Jesus would indeed be words from God.