<quoted text>Correction: I had said that Baal, Ashtoreth, and Tammuz, are found in numerous scriptures, but I meant to say "Baal, Ashtoreth, and Molek."
And I'd like to include this little tidbit, if we don't mind, as it's interesting how this all ties together.
As I had mentioned, Jupiter, Opis, or Ops, and Saturn, were worshiped by the Romans as a so-called "trinity," or "triune god." The so-called "Father" was represented by Jupiter, the so-called "Mother of God" and "Queen of Heaven" was represented by Opis, or Ops, and the so-called "Son" was represented by Saturn.
Now, the festival that honored the so-called "Son," Saturn, was called "Saturnalia," or the "Birthday of the Unconquerable Sun," observed on December 25th if I remember correctly. When Catholicism adopted a so-called "trinity" as their own, they too adopted the festival called "Saturnalia," but soon called it "Christmas." And as Saturnalia was to celebrate the so-called "Birthday of the Unconquerable Sun," Christmas was to celebrate the so-called "Birthday of the Unconquerable Son!"
2Corinthians 11:13-15 For such are false apostles, deceitful workers, transforming themselves into the apostles of Christ. And no marvel; for Satan himself is transformed into an angel of light. Therefore it is no great thing if his ministers also be transformed as the ministers of righteousness; whose end shall be according to their works.
Saturnalia was celebrated over the solstice from the 17th to the 23rd of December. But your point is correct. That festival was co-opted by Christians as was Easter (from the feast of the pagan goddess).
Note that Saturnalia was celebrated with the bringing in of evergreen branches, decorations of lights and Easter (Eoster, Ostara, etc) was celebrated (as befitting a fertility goddess) with eggs, chicks, bunnies, etc.
No sense giving up on a perfectly good holiday when one can simply alter the meaning a bit, or so the thinking ran.
Holidays, feasts, and celebrations, like the Sabbath itself, were made for man and not for Yahweh.