Hebrews 13:17 - Be obedient to those who are taking the lead among you and be submissive, for they are keeping watch over your souls as those who will render an account; that they may do this with joy and not with sighing, for this would be damaging to you.
vs.
Psalms 146:3 - Do not put your trust in nobles,
Nor in the son of earthling man, to whom no salvation belongs.
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Are these scriptures unrelated in that one is talking about a spiritual headship and the other is talking about a government authority?
I've always understood the Psalms passage as being connected to spiritual headship because it is tied to salvation. If that's the case, then what son of earthling man am I supposed to be submissive to AS IF HE were keeping watch over my soul?
Is this one of those find-a-happy-medium examples like "obey the superior authorities" and "we must obey God rather than man" conundrum?
If the Psalms passage is not related to the other, then my question still stands: Who is the bible telling modern Christians to be submissive to and what human can possibly stand in a position of being responsible for someone else’s soul unless we're talking solely about adults vs. minor children?