Psalm 15 (KJV)
This psalm refers to a single subject, but that the most important which can come before the human mind. It is the question. Who is truly religious? who will enter heaven? who will be saved? The psalm contains a statement of what real religion is; one of the most explicit and formal of the statements which we have in the Old Testament on that subject. The form in which the matter is presented is that of a question in the first verse, and of the answer to that question in the other verses of the psalm.