Nature's revelation is unobtrusive.
God is concealed behind second causes.
God is concealed behind regular modes of working (laws).
Nature's revelation is partial, disclosing only a fragment of the name.
Nature's revelation is ambiguous. Dark shadows of death and pain in the
sensitive world, of ruin and convulsions, of shivered stars, seem to
contradict the faith that all is very good; so that it has been
possible for men to drop their plummet in the deep and say, 'I find no
God,' and for others to fall into Manichaeism or some form or other of
dualism.