I Am the Good Shepherd
Jesus says that if someone sneaks into the sheepfold they are a thief, but if they go in through the door they are a shepherd. If the sheep know the shepherd's voice they will follow, but they won't follow a stranger. Jesus is using a figure of speech which they don't understand, so he explains further. The people are the sheep and Jesus is a good shepherd. All others who came before are thieves who were not trusted. He also says that he has the authority to lay down his life for his sheep and take it up again, some people don't trust him because of this claim.
I like that after he says something that requires a bit of interpretation he explains it in further detail. I wish he would do that more often. As far as the actual message of this section, Jesus is basically saying everyone like him that came before was a fake but he is real. I personally don't find such declarations to be that convincing.
I and the Father Are One
The Jews gathered around Jesus and asked him to tell them if he is the Christ in plain language. He said he is, they said it was blasphemy and they tried to stone him and then they tried to arrest him. He got away.
Again, he is asked to talk more plainly and he complies. It appears that he was willing to answer plainly so long as he was asked, too bad someone didn't just follow him around constantly asking him to be more clear. I don't really have much else to say here, I guess it is pretty remarkable how barbaric the time seems to be, they want to stone him for saying he is God.