Mr Sisneros wanted the opportunity to enter the training programme, after which he understood ``there is no guarantees he would be selected for ordination'', he said.
``He knew of course that such ordinations were not without controversy.''
Mr Sisneros was not seeking money through the complaint process, but an admission of discrimination, said Mr Ryken.
The church says Mr Sisneros wasn't eligible to enter the priesthood because he isn't married to a woman or celibate.
Bishop Ross Bay said he advised Mr Sisneros that entering the programme would be a dead end because of ``considerable opposition'' from church leaders on the matter and said he was simply following the church's doctrines.
He would not be opposed to changing his stance should church leaders alter the rules regarding the ordination of homosexual priests, he said.
Bishop Bay admitted he had licensed gay and lesbian priests working in Auckland since becoming bishop, but denied any inconsistencies in his upholding of the church's doctrine in doing so.
The hearing continues.