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' ×××).
The famous  I Have a Dream  address was delivered in August 1963 from the steps of the Lincoln Memorial in Washington, D.C. Less well-remembered are the early sermons of that young, 25-year-old pastor who first began preaching at the Dexter Avenue Baptist Church in Montgomery, Alabama in 1954.