Jesus Christ was, first and foremost, a conservative Jew. In the same way Martin Luther King denounced the liberalism and decadence of the Renaiisance church and demanded a return to traditional values, Jesus Christ was critical or Judaism's accommodation of Hellenistic religious rites and demanded a return to a literal interpretation of (Old Testament) scripture.
“Did not Moses give you the law, and yet none of you keepeth the law” (John7:19)
The 'law' Jesus referred to in this part of the Bible were (mainly) the religious laws of Leviticus (which Moses and Joshua codified during the migration of freed Jewish slaves from Egyptian bondage to the promised land)
As everyone knows, Leviticus condemned homosexuality (it was considered one of the three worst religious crimes in the Old Testiment and punishable by death). Leviticus was silent on same sex marriage. Not because it was neutral on the issue but because such a concept would never have occured to Judaic Bronze Age people. The idea would almost certainly have confused, appalled and enraged them
So yes, Jesus Christ was a passionate supporter of the principles outlined in Leviticus. He attributed much that was wrong with Judaism at the beginning of the first millennium with the failure of Jews to comply with the laws of Moses (including Leviticus)
Would Jesus have supported gay marriage. Absolutely not. Would he have expressed love for homosexual sinners and forgiven their moral transgressions? Absolutely.
(I'm not a Christian by the way but am interested in the subject area)
