No Biblical Authorization for Sunday Sanctification:
In the Faith of Our Fathers, originally published in 1876, the late Cardinal Gibbons of Baltimore wrote:
“... is not every Christian obliged to sanctify Sunday and to abstain on that day from unnecessary servile work? Is not the observance of this law among the most prominent of our sacred duties? But, you may read the Bible from Genesis to Revelation, and you will not find a single line authorizing the sanctification of Sunday. The Scriptures enforce the religious observance of Saturday, a day which we never sanctify.”
Source: The Faith of Our Fathers, by James Cardinal Gibbons, Archbishop of Baltimore, 88th edition, page 89. Originally published in 1876, republished and Copyright 1980 by TAN Books and Publishers, Inc., pages 72-73.
Sabbath Abolished, Sunday Commanded:
“The Bible says, ‘Remember that thou keep holy the Sabbath day.’ The Catholic Church says, No! By my divine power I abolish the Sabbath day, and command you to keep the first day of the week. And lo, the entire civilized world bows down in reverent obedience to the command of the holy Catholic Church.” — Father T. Enright C.S.S.R. of the Redemptoral College, Kansas City, Mo., June 1893.
Source: History of the Sabbath, J. N. Andrews and L. R. Conradi, 4th edition, Revised and Enlarged, Review and Herald Publishing Association, 1912, pg. 802.