Because you said, "...Government is indeed God's creation. The Scriptures are very clear."
For the sake of argument let's suppose government is indeed God's creation. Did you have a point to make?
While we're on the subject of government and God, exactly which god is government a creation of? Is government a creation of Osiris? How about Ishtar? Maybe it's Isis.
Government is a creation of my god! No, it's a creation of mine! No, mine!
Do you see the problem here?
My only point is that the state should not recognize homosexual marriage, because it is a contradiction in terms.
The state ought not be involved in marriage whatsoever just as it should not tell you how to raise your family or what religion to practice.
Rights are given by God.
Where did God list our rights?
Rights are not given by the state.
We're in agreement there.
...a secularist has no basis whatsoever for the rights of man.
Do atheists have rights? Or, do rights belong only to theists?
The secular state believes that rights come from government because they cannot come from God, as the secularist does not believe in God.
When you say "secular state" are you referring to a state which enforces secularism? Or, are you referring to a state which abstains from forcing participation in religion?
Secular societies will always end in tyranny.
Why?
No theocracy has ever facilitated freedom and prosperity. Why not? What's the common denominator?
In any case, government is a creation of the true God of the Bible. This God exists and knows your name. And if I may be so bold, you are well aware that He exists and that He will hold you accountable.
You claim that rights are not given by the state, yet you also claim that they are not given by God. I am afraid that you cannot have your cake and eat it to here. Either our rights are eternal (and therefore come from an eternal source), or you will have to make something up that is temporal, in which case our rights are not eternal.
Secularists have nothing eternal to call upon. Therefore there is nothing to stop the government from taking away my rights, since they believe that nothing eternal will hold them accountable. A secular state, whether it be left-wing or right-wing, will end in tyranny.