Last week, Tebow flew Broncos wide receiver Brandon Lloyd, Jabar Gaffney and Britt Davis to Jacksonville, put them up in a nearby hotel, and then led a week of workouts in his hometown, the source said.
Each of the Broncos receivers had hoped to come, the source said, but Eric Decker had another commitment, and Demaryius Thomas (torn Achilles) and Eddie Royal (strained hamstring) were unable to practice at this time due to lingering injuries.
The receivers that did attend considered it such a success that the group plans to reconvene again in another week or so in Arizona for two weeks of intensive workouts.
The Broncos worked on their conditioning, their timing and many of the facets that other players have tried to focus on during a lockout that is entering its third month.
Tebow recently released his book, "Through My Eyes," and conducted a book signing in the Jacksonville area Monday.
Adam Schefter is ESPN's NFL Insider.