That seems like a pretty bold statement to make, but it's in the bible.
Gen 1:14 And God said, Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years:
Notice "and for seasons". God isn't talking about using the sun and the moon to tell when it's winter, spring, summer of fall.
The word translated "seasons" in the King James is actually:
moade
BDB Definition:
1) appointed place, appointed time, meeting 1a) appointed time
1a1) appointed time (general)
1a2) sacred season, set feast, appointed season
1b) appointed meeting
1c) appointed place
1d) appointed sign or signal
1e) tent of meeting
Notice that it really has nothing to do with what we consider "seasons".
A quick search in Strongs Cocordance will verify that later on in Leviitucs, this same word translated "feasts", as here:
Lev 23:2 Speak unto the children of Israel, and say unto them, [Concerning] the feasts of the LORD, which ye shall proclaim [to be] holy convocations, [even] these [are] my feasts.
In other words, God wanted his people to meet at appointed times to keep God's feasts. He created the sun and the moon to enable us to do just that. They aren't humanly devised feasts or festivals, they are of God.
Ya know I've often thought that this would make a great movie. If done right it could rival Lord of the Rings. :-)