Question about the contrast between Buddhist statements and Christian doctrine

In the Christian Bible (especially in the Book of John), Jesus often talked about Himself as using phrases like: > - I am the light of the world > - I am the door. If anyone enters by Me, he will be saved > - I am the good shepherd. The good shepherd lays down his life for the sheep. Now Buddhism seems to point more on emptiness and nothingness etc. Why is that? Why didn't Buddhists say such things about themselves, as Jesus did? Are there any Buddhists who also said things like, "I am the bread, the light, etc", like Jesus said?