Leighton had, during a stay in the Spanish Netherlands, assimilated something of the ascetic and pietistic spirit of Jansenism, and was devoted to the interests of peace in the church.
He grew up amidst pietistic surroundings, which powerfully influenced him his life through, though he never became a Pietist.
The main difference between the new Pietistic school and the orthodox Lutherans arose from the conception of Christianity as chiefly consisting in a change of heart and consequent holiness of life, while the orthodox Lutherans of the time made it to consist mainly in correctness of doctrine.
Hengstenberg and his pietistic friends.
His pietistic movement won considerable way among the Catholic laity, and even attracted some fifty or sixty priests.