I can't see what's "speaking practically" and "putting the morality aside" here, because there's not really any practical difference.
I can't see what's "speaking practically" and "putting the morality aside" here, because there's not really any practical difference.
Umm what? Do you not see the inherent breakage of trust if your wife is having sex with someone else in a monogamous relationship and then trying to pass off someone else' kid as yours?
I'm not sure I understand. Are you asking why it matters for a man to unknowingly raise another man's child, which his wife conceived while being unfaithful to him?
2) The practical difference is choice. Biological parents are pretty stuck. People in this situation aren't at all.
No, there should be very good and compelling reasons to request a DNA test.
If Joseph chose to raise someone else’s child that’s nice for him. Great. He made a morally laudable, superogatory choice. That’s very different from being betrayed by your loved one and deceived into raising someone else’s child.
Joseph was going to "divorce her quietly"[1] until an angel intervened.[2] He was kind (was not going to cause her more trouble than necessary) but he also wasn't going to raise another man's child brought about by his almost-wife's (at the time, he thought) infidelity. I think many of us would also reconsider when directed to raise the scion of a deity by a literal angel.
[1] https://biblehub.com/matthew/1-19.htm
[2] https://biblehub.com/matthew/1-24.htm (the interaction was the the verses prior.)