1 Samuel 17:10, 25-26, 36

Again the Philistine said, “I defy the ranks of Israel this day; give me a man that we may fight together.”

The men of Israel said, “Have you seen this man who is coming up? Surely he is coming up to defy Israel. And it will be that the king will enrich the man who kills him with great riches and will give him his daughter and make his father’s house free in Israel.” Then David spoke to the men who were standing by him, saying, “What will be done for the man who kills this Philistine and takes away the reproach from Israel? For who is this uncircumcised Philistine, that he should taunt the armies of the living God?”

Your servant has killed both the lion and the bear; and this uncircumcised Philistine will be like one of them, since he has taunted the armies of the living God.”