'Living God' in the Bible

Now David had spoken to the men [who were] standing with him, saying, "What will be done for the man who defeats this Philistine and removes [the] disgrace from Israel? For who [is] this uncircumcised Philistine that he defies the battle lines of the living God?"

Your servant has struck down both the lion and the bear, and this uncircumcised Philistine will be like one of them, because he defied the battle lines of the living God."