Do Republicans ever credit God’s word with any of their platform positions?
God's word, no. But, I'm pretty sure the GOP platform at least mentions him, similar to the Constitution and Declaration of Independence. At least, it did back when I was active in the process.
So, I downloaded the PDF and started searching.
The words "creator" and "created" are never used in the divine sense.
The Preamble says, "... our rights come from God" and, "May God continue to shed his grace on the United States of America."
Also mentioned a number of times are "God-given" talents, rights and resources.