I apologize for the confusion. In the writings of the Apostolic Fathers, there are some passages that caution against elevating one day over another. For example, in the Didache, which is believed to have been written around the late first or early second century AD, there is a section on fasting that says, "But let not your fasts be with the hypocrites; for they fast on the second and fifth days of the week; but do ye fast on the fourth and on the preparation (Friday)" (Chapter 8). This suggests that the Didache is cautioning against aligning too closely with the practices of non-Christian groups and instead emphasizing the importance of personal piety in matters like fasting.

Similarly, in the Epistle of Barnabas, which is believed to have been written in the late first or early second century AD, there is a passage that says, "And let us hold sacred one day, that is, the Sabbath, on which the Jews ceased from all their works. And let us keep the eighth day, on which the Lord appeared to us and put death to flight, and revealed to us the resurrection, commanding us to observe it as a memorial of Himself" (Chapter 15). Here, the emphasis is on the importance of particular days as memorials of the resurrection of Christ.

However, these passages do not suggest that certain days are inherently more significant than others in terms of Christian faith and practice; rather, they emphasize the importance of personal piety and the commemoration of important events in Christian history.