Had he repented of his unbelief?
He had no sooner made the promise than he seems to have repented it.
Procopius relates that Theodoric soon repented of his cruel deed, and that his death, which took place soon after, was hastened by remorse for the crime he had committed against his great counsellor.
When he repented of his attempted resistance and treated with Pompey for peace, his followers threw themselves into Jerusalem, and, when the faction of Hyrcanus resolved to open the gates, into the Temple.
A few weeks before his death he repented of his transformist policy, and again included Crispi and Zanardelli in his cabinet.