Final answer:
The existence of God is a subject explored through both a posteriori and a priori philosophical arguments and is deeply rooted in philosophical inquiry rather than scientific testing. Though theistic claims might suggest testability, empirically proving divine intervention remains contentious due to the subjective nature of evidence.
Step-by-step explanation:
The question of whether the existence of God is a scientific or philosophical inquiry has engaged thinkers across the ages. Philosophers have constructed various arguments for God’s existence such as cosmological arguments, which are a posteriori and look at observed effects to infer a cause; and ontological arguments, which are a priori and draw on reason to deduce the divine. The possibility of objective values underpinning morality is also suggested as evidence of a higher power. These debates are foundational in the realm of philosophy, where ultimate reality, the nature of being, and the divine are core subjects of inquiry.
Concerning miracles, if one considers God as a being capable of intervening in the natural order, then the occurrence of miracles could conceivably be a testable hypothesis within the scientific framework. However, the interpretation of what constitutes ‘evidence’ of such events is contentious. Empirical proof of miracles may perpetually elude us due to the subjective interpretation of observation and experience, posing a challenge to both the skeptic and the believer.
Philosophical skepticism further complicates matters, as it questions the reliability of testimony and the possibility of any definitive proof of God's existence. This skepticism extends to the normative claims of morality and the experience of religious encounters. Ultimately, philosophers argue that many aspects of God's existence are beyond the scope of empirical enquiry and reside in a domain accessible only through faith or philosophical reasoning.