The Third Council of Toledo (589) marks the entry of Visigothic Spain into the Catholic Church, and is known for codifying the filioque clause into Western Christianity.

Prior to the Council in Toledo, King Reccared had convened informal assemblies of bishops to resolve the religious schism in his kingdom.

Its theological precision defining Trinitarian and Arian tenets, establishing Reccared's newly achieved orthodoxy, and its extensive quotation from scripture revealed that it was in fact ghostwritten for the king, doubtless by Leander.

In it, Reccared declared that God had inspired him to lead the Goths back to the true faith, from which they had been led astray by false teachers.

Then followed 23 anathemas directed against Arius and his doctrines, succeeded by the creeds of Nicaea and Constantinople and the definition of Chalcedon, the whole being subscribed by 8 Arian bishops with their clergy, and by all the Gothic nobles.

The bishops were Ugnas of Barcelona, Ubiligisclus of Valencia, Murila of Palencia, Sunnila of Viseu, Gardingus of Tuy, Bechila of Lugo, Argiovitus of Oporto, and Froisclus of Tortosa.

Reccared then instructed the council with his licence to draw up any requisite canons, particularly one directing the creed to be recited at Communion, so that henceforward no one could plead ignorance as an excuse for misbelief.