2. Theology is our comfort.
3. The Kingdom is not the Gospel.
I'll only deal with the last one because some months ago I saw comments reflecting this error under a post attacking Derek Webb at 9Marks. The Gospel is the Gospel of the Kingdom of God.
Matthew 4:23 And he went throughout all Galilee, teaching in their synagogues and proclaiming the gospel of the kingdom and healing every disease and every affliction among the people.
Matthew 9:35 And Jesus went throughout all the cities and villages, teaching in their synagogues and proclaiming the gospel of the kingdom and healing every disease and every affliction.
Matthew 24:14 And this gospel of the kingdom will be proclaimed throughout the whole world as a testimony to all nations, and then the end will come.
Mark 1:14-15 Now after John was arrested, Jesus came into Galilee, proclaiming the gospel of God, and saying, "The time is fulfilled, and the kingdom of God is at hand; repent and believe in the gospel."
Luke 4:42-43 And when it was day, he departed and went into a desolate place. And the people sought him and came to him, and would have kept him from leaving them, but he said to them, "I must preach the good news of the kingdom of God to the other towns as well; for I was sent for this purpose."
Luke 8:1 Soon afterward he went on through cities and villages, proclaiming and bringing the good news of the kingdom of God. And the twelve were with him...
Luke 9:1-2 And he called the twelve together and gave them power and authority over all demons and to cure diseases, 2 and he sent them out to proclaim the kingdom of God and to heal.
I don't believe systematic theology, done properly, is at odds with proper exegesis of Scripture passages that reference the Kingdom of God.
But when a finite and fallen human's systematic formulations about the Gospel contradict Jesus in the Gospels, I'll go with Jesus every time.
The Gospel is the Gospel of the Kingdom of God.