'Ourselves' in the Bible

For you say, "We have made a treaty with death, with Sheol we have made an agreement. When the overwhelming judgment sweeps by it will not reach us. For we have made a lie our refuge, we have hidden ourselves in a deceitful word."

They lament, 'Why don't you notice when we fast? Why don't you pay attention when we humble ourselves?' Look, at the same time you fast, you satisfy your selfish desires, you oppress your workers.