Others saw the reaction against the talk as a sign of how far society had progressed in its acceptance of different expressions of sexuality.
The church's Facebook page has been swamped with comments criticising the talk.
Pastor Bill Anderson did not wish to comment, saying only that it was a "calm, quiet little ad extending an offer of help to people who are hurting inside".
He was disappointed with the attacks on him and the church, and that many people only seemed to show an interest in the church when there was controversy.
The Ohaeawai woman whose Facebook post sparked the furore, Alissa Gibbs, said she was "really riled" by the ad at first.
"I don't think that sort of intolerance has a place in our little community. I wanted to draw it to people's attention, I didn't expect such a backlash and I didn't intend people to jump down the church's throat."
However, she stood by her views that the ad was unacceptable. If someone was genuinely unhappy or confused by their sexuality, they should seek help from a trained professional, "not from someone who's prayed their gay away".
Ms Gibbs said she was considering a peaceful protest.