Hardline unionist Jim Allister is calling on organisers of Belfast Pride to apologise for offensive posters and the "torrent of abuse" he said Christian protesters were subjected to.
The TUV leader has written to the PSNI and Parades Commission about placards he deems offensive including 'Jesus protect me from your followers', and 'Jesus had two dads (and he turned out just fine)'.
Mr Allister said: "I found the posters and gestures offensive.
"It was a perverse attempt to make an argument for gay adoption.
"After a blasphemous placard was carried in the parade previously, organisers gave assurances it would not happen again.
"Assurances given have proved worthless," he said.