In the biblical context, blasphemy is an attitude of disrespect
that finds expression in an act directed against the character of God.
Holman Bible Dictionary (1991)

California Lieutenant Governor Gavin Newsom, a Democrat and the former mayor of San Francisco, is an immoral and blasphemous man.

The latest is — in his support of unnatural, unhealthy, unbiblical, and tyrannical homosexual “marriages,” and his desire that the U.S. Supreme Court will this month strike down California’s Proposition 8 reserving marriage licenses for only “a man and a woman” — Newsom has told the PBS NewsHour “God forbid they do the wrong thing” by upholding Prop. 8.

“God forbid”? Mr. Newsom, haven’t you heard that Creator God is clearly against homosexuality and against any marriage not between a man and a woman? From Genesis to Revelation, homosexuality is called a sin by the King of the Universe.

No person who believes in the Bible should put up with Newsom’s blasphemy. Replacing God’s word with his self-styled Catholicism, Newsom holds that Holy God actually likes homosexuality. Isn’t it time to put his claims to the test?

What the Bible says against homosexuality | Why homosexuality is not a “civil right”

But Newsom has put himself on the throne for years. In 2004, when the then-San Francisco mayor printed up homosexual “marriage” licenses, he was on Larry King Live opposite Pastor John MacArthur, who challenged Newsom, “Do you believe the Bible is the word of God?” Admitting “I guess I do,” Newsom then blasted the word of God as “old constructs” that have “held back society,” despite acknowledging that his homosexual agenda is “inconsistent…with your faith.” Transcript | Video

NEWSOM: The point is some of these arguments, they’re reminiscent. With respect to the pastor, I just, you know, I’m a practicing Catholic. I got married in the church two plus years. I don’t see what we’re doing in terms of advancing the bond of love and monogamy and extending that to family, families of same-sex in any way, shape or form takes away anything from the church or the sanctity of the union that my wife and I have.

MACARTHUR: I would just like to ask the mayor as a practicing Catholic, do you believe the Bible is the word of God?

NEWSOM: Pastor, I’m not going to get into a theological debate with you.

MACARTHUR: That’s not a theological debate. That’s just a straight question, do you believe the Bible is the authoritative word of God?

NEWSOM: With respect, I guess I do. Now the response.

MACARTHUR: Then the Bible says when God created man, he said one man, one woman, cleave together, for life. That’s a family. Jesus in the New Testament reaffirms that, all of the writers of the Old and New Testament affirm it. Adultery, bestiality, homosexuality was punishable by death according to the Old Testament law because it was so serious in those early years because it literally shattered the hope of civilization. The New Testament us, of course, grace, those sins, our sins, they are forgivable. Jesus died to redeem us from those sins. We’re all sinners.

KING: What does the state have to do with it?

MACARTHUR: But the point at this juncture is he’s representing the state, he’s coming back and saying I’m a Catholic, and I’m a Catholic and somehow this fits into my Catholicism and I’m saying what’s your authority then?

NEWSOM: I guess the bottom line is we’re living and advancing together across all kinds of differences, pastor. It is an extraordinary, miraculous thing to come out here in San Francisco and I think the world looks to us to see that it’s possible to live together and advance together across our differences, and I’m proud to represent a city that has diverse points of view, open points of view, that doesn’t believe in discrimination and has evolved from the old constructs that I think have frankly held back society and many that are inconsistent, yes, with your faith and I respect the difference of opinion.

“Therefore I say to you, every sin and blasphemy will be forgiven men, but the blasphemy against the Spirit will not be forgiven men.  Anyone who speaks a word against the Son of Man, it will be forgiven him; but whoever speaks against the Holy Spirit, it will not be forgiven him, either in this age or in the age to come.”
Jesus Christ in Matthew 12:31-32 NKJV