[1] Lecky, "Rise of Rationalism," vol. i. p. 14, note, says
that the Arian Goths were intolerant; but there seem to be
insufficient grounds for the assertion.

With the fall of Arianism came a large accession of bigotry to the
Spanish Church, as is sufficiently shewn by the canon above quoted from
the Sixth Council of Toledo. A subsequent law was even passed forbidding
anyone under pain of confiscation of his property and perpetual
imprisonment, to call in question the Holy Catholic and Apostolic
Church; the Evangelical Institutions; the definitions of the Fathers;
the decrees of the Church; and the Sacraments. In the spirit of these
enactments, severe measures were taken against the Jews, of whom there
were great numbers in Spain. Sisebert (612-621) seems to have been the
first systematic persecutor, whose zeal, as even Isidore confesses, was
"not according to knowledge."[1] A cruel choice was given the Jews
between baptism on the one hand, and scourging and destitution on the
other. When this proved unavailing, more stringent edicts were enforced
against them. Those who under the pressure of persecution consented to
be baptised, were forced to swear by the most solemn of oaths that they
had in very truth renounced their Jewish faith and abhorred its rites.
Those who still refused to conform were subjected to every indignity and
outrage. They were obliged to have Christian servants, and to observe
Sunday and Easter. They were denied the _s connubii_ and the _ius
honorum_. Their testimony was invalid in law courts, unless a Christian
vouched for their character. Some who still held out were even driven
into exile. But this punishment could not have been systematically
carried out, for the Saracen invasion found great numbers of Jews still
in Spain. As Dozy[2] well says of the persecutors--"On le voulut bien,
mais on ne le pouvait pas."