Theology is just that – thinking about God. And yes, it matters. It is about knowing and loving God; and there is no higher goal than that. Jeremiah 9:23-24 (NIV):
23 This is what the LORD says:
“Let not the wise man boast of his wisdom
or the strong man boast of his strength
or the rich man boast of his riches,
24 but let him who boasts boast about this:
that he understands and knows me,
that I am the LORD, who exercises kindness,
justice and righteousness on earth,
for in these I delight,”
declares the LORD.
“Disregard the study of God and you sentence yourself to stumble and blunder throughout life, blindfolded, as it were, with no sense of direction and no understanding of what surrounds you.”—J.I. Packer