But the seventh day is the sabbath of the LORD thy God: Exodus 20:10
"Having continued his labors in Scotland thirty-four years, he clearly and openly foretold his death, and on Saturday, the month of June, said to his disciple Diermit:
"This day is called the Sabbath, that is the rest day, and such will it truly be to me; for it will put an end to my labors.'" "Butler's Lives of the Saints," Vol.1, A.D. 597, art. "St. Columba" p. 762"
ST