1 Samuel 17:26 NIV “… For who is this uncircumcised Philistine, that he should defy the armies of the living God?””
1 Samuel 17 tells the story of how the Philistine army had gathered for war against Israel. The two armies faced each other, camped for battle on opposite sides of a steep valley. Goliath was the champion of the Philistine army, he was a giant, and history suggests to us that he was anywhere from nine feet to sixteen feet tall. He came out in full armor each day for forty days, mocking and challenging the Israelites to fight. His appearance and his legend intimidated the whole army of Israel.
One day David was sent to the battle camp by his father to deliver food and a message to his brothers. David was probably just a young teenager at the time, and not considered fit for battle by human standards. While he was there, David heard Goliath shouting his daily defiance and he saw the great fear stirred within the men of Israel. David asked one of the men, “What shall 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 defy the armies of the living God?” That was the beginning of Goliath’s end!
Understand that David’s confidence was not in himself. It was the belief that David was not fit for battle since he was not enlisted. However David saw himself fit for any challenge that came against what belonged to God. His confidence was in the blood covenant. God had made a blood covenant with Israel, and in understanding blood covenants, this meant Israel and God were one. Any challenge against God was a challenge against His people (not like God will need their help anyway), in like manner, any challenge against God’s people meant it was a defiance against God Himself. Goliath was uncircumcised in this context meaning there was not cutting and flow of blood to show that he had any covenant with God.
Likewise, you have a covenant with God in Christ Jesus. You have been called a joint heir with Christ (Rom. 8:17). You are now one with Christ, and as a part of His body, any persecution against you is a persecution against Christ Himself (Acts 9:4). Jesus has given you the authority of His name as a blank check on heaven’s resources. Any situation that comes against you can be overcome by power in His name, which is symbolic of the covenant you have with God (Joh.14:12). Do not be terrified by any situation that comes against you, but have faith in God, build confidence in your covenant with God!