You might be referring to indentured servitude, which is a voluntary financial arrangement. There was also chattel slavery, which features taking people captive against their wills often as prisoners of war, stealing their freedom, dignity, and labor, and maintaining the right to beat and sell slaves or their children.
Better than being killed I guess, and better for the development of Israel.
That may be, but it is irrelevant to the matter of the moral status of chattel slavery and the Bible's condoning of it in the voice of its deity issuing instructions on the proper way to own and beat people. Those not constrained by the assumption that everything attributed to the god of the Christian Bible is good by definition are free to judge this matter according to their own consciences and their own understanding of right and wrong.
It requires critical thinking with the faith that God is good. Critical thinking using that as fact changes where one ends up.
That's a violation of the principles of critical thought, and yes, inserting that idea into one's analysis changes its conclusions. Critical thinking requires the avoidance of logical fallacy. Assuming that a god exists and is good without compelling supporting evidence is an act of faith, and it derails the logical process as soon as it is assumed and used as part of an argument.
Your sort of critical thinking assumes that you have all the evidence and my sort assumes I have not all the evidence and end up giving the benefit of the doubt to the good God.
I do have all the evidence I need to make a moral judgment, and I have judged chattel slavery and all who condone it immoral. In order to leave that position, I would need to abandon the Golden Rule. My conscience doesn't allow that. I simply cannot accept that kidnapping people, stealing their freedom, dignity, and labor, selling their children, and beating them to death or close to it at will can be moral whatever else might be true.
Look at how your faith in a good God has taken you in a very different direction from me. You're trying to find ways to see slavery as good. This is why our two modes of thinking cannot both be valid if they take us to opposite and mutually exclusive conclusions. If one of us is thinking critically, then the other is not.
Here's a comment I left on another thread in response to a comment that the critical thinker has a problem id he cannot accept the supernatural because of it:
"That's not a problem with critical thinking. That's a feature. We want to keep ideas like that off of our mental maps because they lack sufficient evidentiary support for a critical thinker to believe. These things can only be believed by faith, and we strive to keep such ideas out of the collection of ideas believed to be true. Faith is not be a path to truth. Every wrong idea can be believed by faith. If one considers it important to keep wrong ideas out, he learns the methods of critical thinking, which include the laws of reason and a list of logical fallacies to avoid, ideas that take one off of the path to sound conclusions."
That helps preserve my faith when other evidence points to the guilt of God and is being humble before my God.
Yes, it does. That's what a faith-based confirmation bias does: it protects a faith-based belief from contradictory evidence. That is exactly the same thing as closing one's mind. That's what closed refers to here - filtering out such evidence. Here are some examples of that from prominent theists:
The moderator in the debate between Bill Nye and Ken Ham on whether creationism is a viable scientific field of study asked, “What would change your minds?” Scientist Bill Nye answered, “Evidence.” Young Earth Creationist Ken Ham answered, “Nothing. I'm a Christian.” Elsewhere, Ham stated, 'By definition, no apparent, perceived or claimed evidence in any field, including history and chronology, can be valid if it contradicts the scriptural record." Ham is telling you that faith has closed his mind to evidence.
So is William Lane Craig: "The way in which I know Christianity is true is first and foremost on the basis of the witness of the Holy Spirit in my heart. And this gives me a self-authenticating means of knowing Christianity is true wholly apart from the evidence. And therefore, even if in some historically contingent circumstances the evidence that I have available to me should turn against Christianity, I do not think that this controverts the witness of the Holy Spirit. In such a situation, I should regard that as simply a result of the contingent circumstances that I'm in, and that if I were to pursue this with due diligence and with time, I would discover that the evidence, if in fact I could get the correct picture, would support exactly what the witness of the Holy Spirit tells me. So I think that's very important to get the relationship between faith and reason right"
You are doing what they are doing, which is what the critical thinker like Nye is trained to not do. All of you will always conclude that God is good because you all began with that premise. If one's faith-based belief is wrong and there is convincing evidence that an open mind would consider impartially and be corrected by, the one wearing the confirmation bias has locked himself into his error without any means to correct it.
And what you call being humble before God is what I would call allowing others to supplant their ideas for what would have been yours. The believer is taught that this is a virtue, and that any assertion of his own thoughts and will in contradiction to those ideas is rebellion, or weak faith, or Satan trying to steal his soul, or trying to make oneself God. The secular humanist does not consider such thinking virtuous or even desirable. What you call humility is what I would call an abdication of one's own responsibility to self to apply the faculties of reason and conscience to his means of deciding what is good and what is true.