JDS (12 Jan 2012)
"Re: Kurt S. ''Mile High Halo' Forms Over Tim Tebow And Mile High Stadium During Broncos Game""

From JDS:
Tebow's gersey has the number  '15' on it.
In Hebrew, the number '15'  is actually  "yod-hey", "יה ", which is pronounced "YAH", the name of GOD.
So as to not announce constantly the unspeakable Holy name of God, the original number  '15', "yod-hey"  
was changed by the Rabbi's in modern times to "tet-vav", טו