Isaiah 50:4-9a
4The Lord God has given me the tongue of a teacher, that I may know how to sustain the weary with a word. Morning by morning he wakens— wakens my ear to listen as those who are taught. 5The Lord God has opened my ear, and I was not rebellious, I did not turn backward. 6I gave my back to those who struck me, and my cheeks to those who pulled out the beard; I did not hide my face from insult and spitting. 7The Lord God helps me; therefore I have not been disgraced; therefore I have set my face like flint, and I know that I shall not be put to shame; 8he who vindicates me is near. Who will contend with me? Let us stand up together. Who are my adversaries? Let them confront me. 9It is the Lord God who helps me; who will declare me guilty? All of them will wear out like a garment; the moth will eat them up.
Mark 8:27-38
27Jesus went on with his disciples to the villages of Caesarea Philippi; and on the way he asked his disciples, “Who do people say that I am?” 28And they answered him, “John the Baptist; and others, Elijah; and still others, one of the prophets.” 29He asked them, “But who do you say that I am?” Peter answered him, “You are the Messiah.” 30And he sternly ordered them not to tell anyone about him.
31Then he began to teach them that the Son of Man must undergo great suffering, and be rejected by the elders, the chief priests, and the scribes, and be killed, and after three days rise again. 32He said all this quite openly. And Peter took him aside and began to rebuke him. 33But turning and looking at his disciples, he rebuked Peter and said, “Get behind me, Satan! For you are setting your mind not on divine things but on human things.”
34He called the crowd with his disciples, and said to them, “If any want to become my followers, let them deny themselves and take up their cross and follow me. 35For those who want to save their life will lose it, and those who lose their life for my sake, and for the sake of the gospel, will save it. 36For what will it profit them to gain the whole world and forfeit their life? 37Indeed, what can they give in return for their life? 38Those who are ashamed of me and of my words in this adulterous and sinful generation, of them the Son of Man will also be ashamed when he comes in the glory of his Father with the holy angels.”