How can a Christian reject part of the Bible and still call themselves a Christian?

[Lek]

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If you need pictures to underscore the Bible verses on slavery, here you go:

Funny how they quoted 1 Cor 7:21 , 24 and left out 7:22,23 which tells the slave to gain his freedom if he can do so.
[quote]Jesus often used slaves in his parables and gave the nod to beating them:
And that servant, which knew his lord's will, and prepared not himself, neither did according to his will, shall be beaten with many stripes.
[quote]
"Servant", not "slave". They did also beat servants in those days. (Sob.)

But perhaps you know of some passages that call for the abolition of slavery. Do tell.[quote]
None of the verses you referenced call for the institution of slavery, but they acknowledged that christians lived with it.

...and all this time I thought it was that heathen deist Lincoln backed by hundreds of thousands of Union soldiers but hey, obviously I was mistaken.[quote]

You're saying Lincoln was a deist? What's your source on that?

Certainly women aren't equal to men in the eyes of Jesus. Neither are slaves equal to their masters. But again, I invite you to cite me chapter and verse.[quote]

We're all equal in God's eyes, but we have different roles, just as Jesus was obedient to the Father even though they were equally God.

America is the only developed nation where Christianity has any kind of a foothold. In all other developed countries, atheism is ascendant. The more these scientists run amok, the more it is at the cost of the power of Christ. In what alternate dimension do you live where the developed world is more authentically Christian?

I agree with you partially on this one. Even in America most Christians are not authentically Christian. It's not because of scientific discoveries, it's because when when become wealthy they become proud and think they can rely on themselves. I don't know of any scientific discoveries that disprove the existence of God or disprove the bible.