" Your Giant Ain’t Jack"

21 And Israel and the Philistines drew up for battle, army against army. 22 And David left the things in charge of the keeper of the baggage and ran to the ranks and went and greeted his brothers. 23 As he talked with them, behold, the champion, the Philistine of Gath, Goliath by name, came up out of the ranks of the Philistines and spoke the same words as before. And David heard him

24 All the men of Israel, when they saw the man, fled from him and were much afraid. 25 And the men of Israel said, “Have you seen this man who has come up? Surely he has come up to defy Israel. And 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.” 26 And David said to the men who stood by him, “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?” 27 And the people answered him in the same way, “So shall it be done to the man who kills him.”
- 1 Samuel 17:21-27

Giants reveal your level of faith

10 And the Philistine said, “I defy the ranks of Israel this day. Give me a man, that we may fight together.” 11 When Saul and all Israel heard these words of the Philistine, they were dismayed and greatly afraid.
- 1 Samuel 17:10-11

David recognized the nature of the battle was spiritual

Covenant - a divinely ordained, relational bond and covering

11 Then Samuel said to Jesse, “Are all your sons here?” And he said, “There remains yet the youngest, but behold, he is keeping the sheep.” And Samuel said to Jesse, “Send and get him, for we will not sit down till he comes here.” 12 And he sent and brought him in. Now he was ruddy and had beautiful eyes and was handsome. And the Lord said, “Arise, anoint him, for this is he.” 13 Then Samuel took the horn of oil and anointed him in the midst of his brothers. And the Spirit of the Lord rushed upon David from that day forward.
- 1 Samuel 16:11-13

The real giant isn’t Goliath. The real giant is you (with Jesus inside) 

for he who is in you is greater than he who is in the world.
- 1 John 4:4b