Obviously, the choice is very black and white: good or evil; life or death; blessings or curses...Unfortunately, the actions of the people will speak louder than their words.
There are good, God-pleasing reasons to attend a Divine Service, but worship attendance can also be an action by which we try to earn or deserve the favor and love of God. This is an ongoing struggle in every worshiping community.
In chapter 41 the servant is identified as Israel, but chapter 42 is a different servant. In fact, Matthew 12:18-21 makes the ID clear—this Servant is Jesus!