The Adornment of the Spiritual Marriage, by Jan van Ruysbroeck, , at sacred-texts.com
Inward devotion often brings forth gratitude; for none can thank and praise God so well as the inward and devout man. And it is just that we should thank and praise God, because He has created us as reasonable creatures, and has ordained and destined heaven and earth and the angels to our service; and because He became man for our sins, and taught us, and lived for our sake, and showed us the way; and because He has ministered to us in humble raiment, and suffered an ignominous death for the love of us, and promised us His eternal kingdom and Himself also for our reward and for our wage. And He has spared us in our sins, and has forgiven us or will forgive us; and has poured His grace and His love into our souls, and will dwell and remain with us, and in us, throughout eternity. And He has visited us and will visit us all the days of our lives with His noble sacraments, according to the need of each, and has left us His Flesh and His Blood for food and drink, according to the desire and the hunger of each; and has set before us nature and the Scriptures and all creatures, as examples, and as a mirror, that therein we may look and learn how we may turn all our deeds to works of virtue; and has given us health and strength and power, and sometimes for our own good has sent us sickness; and in outward need has established inward peace and happiness in us; and has caused us to be called by Christian names and to have been born of Christian parents. For all these things we should thank God here on earth, that hereafter we may thank Him in eternity.
We should also praise God by means of everything that we can offer to Him. To praise God, means that all his life long a man glorifies, reverences and venerates the Divine Omnipotence. The praise of God is the meet and proper work of the angels and the saints in heaven, and of loving men on earth. God should be praised by desire, by the lifting up of all our powers, by words, by works, with body and with soul, and faith whatsoever one possesses; in humble service, from without and from within. He who does not praise God while here on earth shall in eternity be dumb. To praise God is the dearest and most joyous work of every loving heart; and the heart which is full of praise desires that every creature should praise God. The praise of God has no end, for it is our bliss; and most justly shall we praise Him in eternity.