Jockular saidNow if only they would come to the same conclusion on gay marriage that "Jesus didn't say that"....technically the Bible is absent on gay marriage. The closest thing being mentioned is the story of Jonathan and David.
Search the entire New Testament and nowhere will you find any documentation where Jesus told his disciples to write anything down. He told them to go out and PREACH the good new of salvation and the kingdom of god. He also told them that whoever hears you hears me. There are alot of issues that have arisen since the time of Jesus that the Church has had to address and the Catholic Church believes it was founded and commissioned by Jesus and his disciples to do exactly that and is well within her rights to decide whether her priests can marry and which of its followers and under what circumstances they are elligible for marriage.
The Church law forbidding the Sacrament of Matrimony to the Roman Catholic clergy is just that - Church law and not divine law. The Church is well within her rights to change that law if it sees fit. You may be interested in knowing there are other rites within the Catholic Church (Roman Catholic is only one rite among many in the Church) that allow priests to be married. I believe the only stipulation is that they must marry before they take Holy Orders and they may not be elevated to the office of bishop if married., although I'm no expert on canon law. In the past priests of the Roman rite were allowed to be married and it is quite possible for them to be allowed to be married again in the future. Not because the Bible says its permissible but because canon law says it is.
Now if there was solid scriptural basis for not allowing a married clergy; i.e., Jesus is directly quoted as reserving the priesthood to celibate males and there was a tradition of no married priests going back to Apostolic times, that would be something entirely different and the Church would feel she had no right to change something she felt was divinely ordained.