Final answer:
The quoted passage is from the Bible, found in the book of Isaiah in the Old Testament, which is a sacred text for both Judaism and Christianity.
Step-by-step explanation:
The passage "All we like sheep have gone astray; we have turned—every one—to his own way; and the Lord has laid on him the iniquity of us all" is taken from the Bible, specifically from the book of Isaiah, chapter 53, verse 6. The Bible comprises a collection of religious texts or scriptures sacred to Christians, Jews, Samaritans, Rastafari, and others. It appears among texts within the Hebrew Old Testament or Christian Old Testament, both of which are considered sacred in Judaism and Christianity respectively.