Martin Luther is known for histheology of the cross which is in contrast to what he termed a theology of glory. The former is the understanding that we must approach God through Jesus Christ, relying on his death for our life. Human endeavor must be forsaken; we boast only in the cross, as the apostle Paul directed. Far from being "Luther's" theology, this is basically the teaching of the New Testament.
The theology of glory, in contrast, is... well, just what is it? Since I wasn't sure exactly what is meant by this term, I thought I'd find out by visiting Wikipedia. There was a nice write-up on the theology of the cross here. So I looked up their article on the theology of glory and to my surprise was sent here - basically redirected right back to the cross!
I suppose this is how the disciples felt. Just when they were starting to understand Jesus' glory, back to the cross they were sent...
[Jesus] then began to teach them that the Son of Man must suffer many things and be rejected by the elders, chief priests and teachers of the law, and that he must be killed and after three days rise again. He spoke plainly about this, and Peter took him aside and began to rebuke him.
But when Jesus turned and looked at his disciples, he rebuked Peter. "Get behind me, Satan!" he said. "You do not have in mind the things of God, but the things of men."
Then he called the crowd to him along with his disciples and said: "If anyone would come after me, he must deny himself and take up his cross and follow me. For whoever wants to save his life will lose it, but whoever loses his life for me and for the gospel will save it. What good is it for a man to gain the whole world, yet forfeit his soul? Or what can a man give in exchange for his soul? If anyone is ashamed of me and my words in this adulterous and sinful generation, the Son of Man will be ashamed of him when he comes in his Father's glory with the holy angels."
From Mark 8:31-38