9. F. QUINTO IDUS IUNII.
BAOITHIN, abbot of I-Coluim-Cille, next after Colum Cille himself; and Tech Baoithin in Cinel Conaill was his chief church, for he was of the race of Conall Gulban. It was to this Baoithin it was permitted to see the three grand chairs in heaven empty, awaiting some of the saints of Erin, viz., a chair of gold, and a chair of silver, and a chair of glass, and he told Colum Cille at I the vision which was shown unto him; for he used to be always along with Colum Cille, for they were close in consanguinity and friendship, i.e., they were the sons of two brothers. It was then Colum Cille gave the interpretation to him of the thing which he had seen, for he was a famous prophet, so that he said then: The chair of gold which thou hast seen is the chair of Ciáran, son of the carpenter, the reward of his sanctity, and hospitality, and charity. The chair of silver which thou hast seen is thine own chair, for the brightness and effulgence of thy piety. The chair of glass is my own chair, for although I am pure and bright, I am brittle and fragile, in consequence of the battles which were fought on my account. So that it was after this he (Colum Cille) resolved upon the celebrated abstinence, i.e., to take nettle pottage as food for the future, without dripping or fat whatever, so that the impression of his ribs through his woollen tunic was seen in the sandy beach, which is by the side of I when he used to lie on it at night.
Now, Baoithin was four years in the abbacy at I after the death of Colum Cille, for it was from among the men of Erin the abbot of I was chosen; and he was most frequently chosen from the men of Cinel Conaill. When he used to eat food, he was wont to say, “Deus in adjutorium meum intende,” between every two morsels. When he used to be gathering corn along with the monks he held one hand up beseeching God, and another hand gathering the corn. Baoithin resigned his soul to heaven after the four years aforesaid, on the same day of the month that Colum Cille went to Heaven A.D. 600.
— Martyrology of Donegal, A Calendar of the Saints of Ireland, by Michael O’Clery, James Henthorn Todd, William Reeves (Bp. of Down, Connor and Dromore).