If the document was completely logical & self-supporting, then there’d be no need to cherry pick as anything said would be consistent with the whole.
You’re assuming that the entire document has a single message, which is absolutely not a given. Simple hypothetical:
If the Bible said nothing more than these things:
Abortion is bad
You should tithe 10% of your income to the church
The earth is 6000 years old
And you were someone who was on board with the first two but not the third, it’d be cherry-picking to call yourself an adherent of the Bible while citing your belief/agreement in/with the first two while ignoring the third, even though none of the three things above contradict each other.
You’re assuming that the entire document has a single message, which is absolutely not a given. Simple hypothetical:
If the Bible said nothing more than these things:
And you were someone who was on board with the first two but not the third, it’d be cherry-picking to call yourself an adherent of the Bible while citing your belief/agreement in/with the first two while ignoring the third, even though none of the three things above contradict each other.