- To fight against Satan.
- To rescue the souls of the faithful from the power of the enemy, especially at the hour of death.
- To be the champion of God's people, the Jews in the Old Law, the Christians in the New Testament; therefore he was the patron of the Church, and of the orders of knights during the Middle Ages.
- To call away from earth and bring men's souls to judgment
early style under the instruction of Albert van Ouwater; he joined the guild of St Luke at Bruges in 1484 and became dean in 1501.
In his early work he followed the Haarlem tradition as represented by Ouwater and Geertgen tot Sint Jans but already shown evidence of his superiority as a colourist. But the works on which David's fame rests most securely are his great altarpieces. These are mature works - severe yet richly coloured, showing a masterful handling of light, volume, and space. The Judgment panels are especially notable for being among the earliest Flemish paintings to employ such Italian Renaissance devices as putti and garlands. In Antwerp David became impressed by the life and movement in the work of Quentin Massys, who had introduced a more intimate and more human conception of sacred themes. More
After Isabella's death in 1504 Juan de Flandes turned to ecclesiastical commissions from Spanish churches, beginning in Salamanca in 1505–7. He was later based in Palencia, where there is a large reredos in the Cathedral. The overwhelming majority of his work, held in collections outside Spain, date from this later period during which he concentrated on religious themes.
His works show the Early Netherlandish style of Ghent adapted to the Spanish taste and landscape, notably the requirements for groups of compartmented scenes for altarpieces. His colouring is refined, "with a preference for rather acid hues", and "while his feeling for space and light is sophisticated, a tendency to divide space into a succession of thin planes becomes a mannerism in his late works". More