The number of Norse gods (there were 12) at a banquet that was crashed by the evil spirit Loki (making 13) who killed Baldr with an arrow/spear made out of mistletoe using Hodr, thus marking the beginning of Ragnarok.
There were thirteen participants at the Last Supper. Tradition states that Judas Iscariot, the disciple who betrayed Jesus, was the 13th to sit at the table.
I have my own meaning for the 13 on my vest. 12 Jurors and 1 Judge I am a my own Judge and Jury What is others meaning for the 13 they wear? I have heard a couple wild ones.
doesn't matter what your meaning is , the 13 patch means one thing to the rest of the world ( excluding these sports lover guys LOL )