Saint Braulio not only compared him to Saint Gregory the Great, but said that he looked on him as having been sent by Heaven as a second Saint James the Apostle, to instruct the people of Spain. Isidore wrote a book On Etymologies, and another On Ecclesiastical Offices, and several others of such importance to Christian and ecclesial discipline that Pope Saint Leo IV hesitated not to say, in a letter addressed to the Bishops of Britain, that one ought to adhere to the words of Isidore with that same respect as is shown to those of Jerome and Augustine, as often as a difficult case should arise which could not be settled by Canon Law. Several sentences of his works have been inserted into the body of the Canon Law. He presided over the Fourth Council of Toledo, which is the most celebrated of all those that have been held in Spain. At length, after having driven the Arian heresy out of Spain, he publicly foretold the day of his death, and the devastation of the country by the Saracens. And having governed his See for about forty years, he died at Seville in 636. His body was first buried, as himself had requested, between those of his brother and sister, Leander and Florentina.
Afterwards, Ferdinand I, King of Castille and Leon, purchased it, for a large sum of money from Enetus, the Saracen governor of Seville, and had it translated to Leon. Here, a Church was built in his honour, and the miracles that are wrought by his intercession, have led the people to honour him with great devotion.
Dom Prosper Guéranger:
The Church presents to us today, for our devout admiration, the memory of one of the holiest of her Bishops — Isidore, the Bishop of Seville, the most learned man of his age and, what is a still greater praise, the most zealous patriot and friend of his noble country. Let us study his virtues and confide in his patronage: both will help us to fervour during this holy Season.
Among Christian lands, there is one that has gained for herself the glorious name of the Catholic Kingdom. Towards the close of the seventh century Divine Providence subjected her to a most severe trial by permitting the Saracen hordes to invade her, so that her heroic children had to struggle for eight hundred years for the recovery of their country. Contemporaneously with Spain, Asia, also, and Africa fell under the Mussulman yoke, and have continued in their slavery up to the present day. Whence comes it that Spain has triumphed over her oppressors and that tyranny has never been able to make her children degenerate? The answer is easily given: Spain, at the period of her invasion, was Catholic, and Catholicity was the very spirit of the land: whereas those other nations that yielded themselves slaves to the Saracens were already separated from the Christian Church by heresy or schism. God abandoned them because they had rejected both the truth of Faith, and unity with the Church. They fell an easy prey to the infidel conqueror.
Nevertheless, Spain had incurred an immense risk. The race of the Goths, by their long invasion of her territory, had sowed the seeds of heresy: Arianism had set up its sacrilegious altars in Iberia. But God did not permit this privileged country to be long under the yoke of error. Before the Saracens came upon her, she had been reconciled to the Church, and God had chosen one family to be the glorious instrument in the completion of this great work. Even to this day, the traveller through Andalusia will find the squares of its cities adorned with four statues: they are those of three brothers and a sister: Saint Leander, Bishop of Seville; Saint Isidore, whose feast we are keeping today; Saint Fulgentius, Bishop of Carthagena; and their sister, Saint Florentina, a nun. It was by the zeal and eloquence of Saint Leander that King Reccared and his Goths were converted from Arianism to the Catholic Faith in 589. The learning and piety of our glorious Isidore consolidated the great work. Fulgentius gave it stability by his virtues and erudition, and Florentina co-operated in it by her life of sacrifice and prayer.
Let us unite with the Catholic Kingdom in honouring this family of Saints, and today in a special manner, let us pay the tribute of our devotion to Saint Isidore.
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Faithful Pastor! The Christian people honour your virtues and your services. They rejoice in the recompense with which God has crowned your merits. Hear the prayers that are offered to you during these the days of salvation. When on Earth your vigilance over the flock entrusted to thy care was untiring. Consider us as a part of it, and defend us from the ravenous wolves that cease not to seek our destruction. May your prayers obtain for us that fullness of graces needed for our worthily completing the holy Season which is so near its close. Keep up our courage. Incite us to fervour. Prepare us for the great mysteries we are about to celebrate. We have bewailed our sins, and though feebly, we have done penance for them. The work of our conversion has, therefore, made progress, and now we must perfect it by the contemplation of the Passion and Death of our Redeemer. Assist us, his faithful and loving Servant! Do thou, whose life was ever pure, take sinners under your care, and hear the prayers offered to you on this day by the Church. Look down from Heaven on your beloved Spain which honours thee with such earnest devotion. Revive her ancient ardour of Faith. Restore to her the vigour of Christian morality. Remove from her the tares that have sprung up among the good seed. The whole Church reveres your noble country for her staunch adhesion to the truths of Faith. Pray for her that she may come unhurt from the ordeal she is now being put through, and ever prove herself worthy of that glorious title of The Catholic Kingdom, which you helped her to gain.
Also on this day according to the ROMAN MARTYROLOGY:
At Thessalonica, in the time of the emperor Maximian and the governor Faustinus, the holy martyrs Agathopodes, a deacon, and Theodulus, a lector, who, for the confession of the Christian faith, were thrown into the sea with stones tied to their necks.
At Milan, the demise of St. Ambrose, bishop and confessor, through whose labours, learning and miracles almost all Italy returned to the Catholic faith at the time when the perfidious Arian heresy was widely diffused.
At Constantinople, St. Plato, a monk, who for many years combated with invincible courage the heretics that were breaking sacred images.
In Palestine, the anchoret St. Zozimus, who buried the remains of St. Mary of Egypt.
And in other places, many other holy martyrs, confessors and virgins.
Thanks be to God.