Isaiah 66

In verse 3 of this chapter God calls out those who are "going through the motions" but put nothing of themselves in their worship. They offer sacrifices without sorrow for their sins. The pour out blood neglecting their need for repentance. They march to God's temple with the same attitude with which they approach a pagan site. They are polytheists attempting to appease their many lords. Their approaching punishment is because they chose to disobey God and act out their evil intentions.
Stuart