 During forty years he devoted himself to teaching and to the composition of his great work, which has been highly praised by Protestants as well as Catholics.Juan Maldonato, a Spanish Jesuit, born 1584, wrote commentaries on Isaias, Baruch, Ezechiel, Daniel, Psalms, Proverbs, Canticles (Song of Solomon), and Ecclesiastes.His best work, however, is his Latin commentary on the Four Gospels, which is generally acknowledged to be one of the best ever written.