By this I mean, what does the Bible say faith is, and what it entails?
Faith is belief that comes from hearing or reading the testimony of others. I have never seen Paris, New York City, or Beijing, but I have faith that they exist because I have read about them from reliable sources. Faith is also, more broadly, the foundation of our hope as Christians. Because of our belief in the testimony of those long past, written for us in the Bible, we have hope and look forward to the fulfillment of its promises. (Heb. 11:1, paraphrased)
Faith and obedience are inextricably linked. But so many say that only faith is required. Should we believe God or men? Must we obey as well as believe to be saved from our sins?
You didn't even once cite the texts that explain on a fundamental level, the antithesis that exists between faith and works?
By definition alone, the principles are incompatible - you either earn your salvation, or it is by the grace of God that one is saved. What are you going to do, somehow attempt to harmonize the two antagonistic concepts?
Works are merely the evidence of one's faith, they are not the grounds on which we are saved, for even a charlatan can feign such tangible efforts.
Galatians 2:16
Yet we know that a person is not justified by works of the law but through faith in Jesus Christ, so we also have believed in Christ Jesus, in order to be justified by faith in Christ and not by works of the law, because by works of the law no one will be justified.
Romans 3:28
For we hold that one is justified by faith apart from works of the law.
Romans 3:20
For by works of the law no human being will be justified in his sight, since through the law comes knowledge of sin.
Romans 4:1-25
What then shall we say was gained by Abraham, our forefather according to the flesh? For if Abraham was justified by works, he has something to boast about, but not before God. For what does the Scripture say? “Abraham believed God, and it was counted to him as righteousness.” Now to the one who works, his wages are not counted as a gift but as his due. And to the one who does not work but believes in him who justifies the ungodly, his faith is counted as righteousness, ...
Romans 4:3
For what does the Scripture say? “Abraham believed God, and it was counted to him as righteousness.”
Romans 4:5
And to the one who does not work but believes in him who justifies the ungodly, his faith is counted as righteousness,
Romans 4:16
That is why it depends on faith, in order that the promise may rest on grace and be guaranteed to all his offspring—not only to the adherent of the law but also to the one who shares the faith of Abraham, who is the father of us all,
Romans 11:6
But if it is by grace, it is no longer on the basis of works; otherwise grace would no longer be grace.
Romans 9:30
What shall we say, then? That Gentiles who did not pursue righteousness have attained it, that is, a righteousness that is by faith;
Romans 1:17
For in it the righteousness of God is revealed from faith for faith, as it is written, “The righteous shall live by faith.”
Romans 4:11
He received the sign of circumcision as a seal of the righteousness that he had by faith while he was still uncircumcised. The purpose was to make him the father of all who believe without being circumcised, so that righteousness would be counted to them as well,
Romans 3:24
And are justified by his grace as a gift, through the redemption that is in Christ Jesus,
Philippians 3:9
And be found in him, not having a righteousness of my own that comes from the law, but that which comes through faith in Christ, the righteousness from God that depends on faith—
Ephesians 2:8-9
For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, not a result of works, so that no one may boast.
James 2:23
And the Scripture was fulfilled that says, “Abraham believed God, and it was counted to him as righteousness”—and he was called a friend of God.
Galatians 3:24
So then, the law was our guardian until Christ came, in order that we might be justified by faith.
Galatians 2:21
I do not nullify the grace of God, for if righteousness were through the law, then Christ died for no purpose.
Galatians 5:6
For in Christ Jesus neither circumcision nor uncircumcision counts for anything, but only faith working through love.
Galatians 3:11
Now it is evident that no one is justified before God by the law, for “The righteous shall live by faith.”
Galatians 3:22
But the Scripture imprisoned everything under sin, so that the promise by faith in Jesus Christ might be given to those who believe.
Titus 3:5
He saved us, not because of works done by us in righteousness, but according to his own mercy, by the washing of regeneration and renewal of the Holy Spirit,
Romans 3:27
Then what becomes of our boasting? It is excluded. By what kind of law? By a law of works? No, but by the law of faith.
Romans 3:23
For all have sinned and fall short of the glory of God,
Ephesians 2:8-10
For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, not a result of works, so that no one may boast. For we are his workmanship, created in Christ Jesus for good works, which God prepared beforehand, that we should walk in them.