chained_bear commented on the word mackerel-snapper I get the fish-eater thing, but I don't know why non-Catholics wouldn't want mackerel--evidenced by the use of the term in a disparaging phrase. (Or wouldn't want snapper, for that matter.)
Psalm 1 is the first of the Psalms in the Hebrew Bible. Like many of the psalms, it contrasts the  righteous  person (tzadik ×¦×××§) to the wicked or ungodly (rasha` ×¨×©×¢) or the  sinner  (chatta' ×××).
Unlike other books of the Bible (in which the chapter and verse divisions were inserted only by medieval scholars) the chapters and verses of the Book of Psalms seem to have been impressed upon the book by the poetic structure of each psalm from the very moment of their divine inspiration (see the note on Psalm 22:22).