Isaiah 40 introduces the major section of Isaiah 40-55. The question of God's trustworthiness has been thoroughly answered in Isaiah 7-39 despite man's failure and sins. Now the questions are:
Isaiah addresses these questions in the future context of the coming Babylonian exile, when he anticipates the questions the exiles will be prompted to ask in that crisis. Isaiah 40-55 answer the questions in two parts:- What will motivate the people of God to trust him and become the servants they were called to be?
- How is it possible for sinful Israel to become God's servants?
- What is to be done about the sin that has alienated them from God?

