Christ confirmed every word in the Old Testament which condemns homosexual behavior. In His own words, every jot and tittle.
Oh, then does that mean that Christ also confirmed it's acceptable for fathers to offer up their virgin daughters to be gang raped as detailed in Genesis 19:4-8?
Have you studied the historical context of Leviticus 18:22 and 20:13 and the original language of the verses? Look at 1 King 14:24 and Deuteronomy 23:17-18 for hints. They're
not about two men (or two women) having an affectionate, genuinely consensual relationship with one another. Paul's condemnation of same-gender relationships in Romans were in regards to common practices at the time that are diametrically different than gay marriage, such as ritualized sexual encounters tied to pagan worship and idolatry, and pederasty (the practice of grown men taking on pubescent boys as students and lovers).
But since you think Jesus agreed to every dotted i and crossed t of the Old Testament, what about the multitude of verses not only allowing slavery, but permitting masters to beat their slaves so long as the slaves don't die within two days of that beating? Jesus is totally cool with that, according to you? I mean, if Jesus really did confirm every word in the OT, then He must think slavery, incest, stoning rebellious sons, and other nefariousness is permissible. Or, does He just treat verses the same way this couple did and pick and choose which ones he liked as if they were proffered up for selection at a smorgasbord?
Could you kindly show me a single verse where homosexuality as it is applicable to two consenting adults who want to be in an exclusive, loving, mutually beneficial relationship such as with a gay marriage is prohibited? You can't.
The condemnations of same-sex intimacy in the Bible are pertaining to gang-rape, temple prostitution, idolatry, and pederasty, all of which are as unrelated to gay marriage as they are to marriage between two heterosexuals.