1 Samuel 17:32
"And David said to Saul, Let no man’s heart fail because of him; thy servant will go and fight with this Philistine."
Cross References (ranked by relevance)
Then answered one of the servants, and said, Behold, I have seen a son of Jesse the Bethlehemite, that is cunning in playing, and a mighty valiant man, and a man of war, and prudent in matters, and a comely person, and the LORD is with him.
I will not be afraid of ten thousands of people, that have set themselves against me round about.
Say to them that are of a fearful heart, Be strong, fear not: behold, your God will come with vengeance, even God with a recompence; he will come and save you.
Only rebel not ye against the LORD, neither fear ye the people of the land; for they are bread for us: their defence is departed from them, and the LORD is with us: fear them not.
And Jonathan said to the young man that bare his armour, Come, and let us go over unto the garrison of these uncircumcised: it may be that the LORD will work for us: for there is no restraint to the LORD to save by many or by few.
Wherefore lift up the hands which hang down, and the feeble knees;
Now therefore give me this mountain, whereof the LORD spake in that day; for thou heardest in that day how the Anakims were there, and that the cities were great and fenced: if so be the LORD will be with me, then I shall be able to drive them out, as the LORD said.
And Caleb stilled the people before Moses, and said, Let us go up at once, and possess it; for we are well able to overcome it.