In the middle of this period of general gaiety,” explains The Story of Christmas, “there was a day set aside for special reverence to the sun whose apparent rebirth on the Winter Solstice had originally provided the excuse for all these widespread pagan jollifications. ... But the Bible foretold that, in time, a great apostasy would develop among Christians (Acts 20:29, 30; 2 Thessalonians 2:3; 1 Timothy 4:1-3; 2 Peter 2:1, 2) Toward the end of the second century, the writer Tertullian had to censure “Christians” for taking part in “the feasts of Saturn, and of January, and of the Winter solstice, so not for true Christians.