Isaiah 50:4-9a
50:4 The 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.

50:5 The Lord GOD has opened my ear, and I was not rebellious, I did not turn backward.

50:6 I 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.

50:7 The 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;

50:8 he who vindicates me is near. Who will contend with me? Let us stand up together. Who are my adversaries? Let them confront me.

50:9a It is the Lord GOD who helps me; who will declare me guilty?