Deuteronomy 31:6-7

6 aBe strong and courageous. Do not fear or be in dread of them, bfor it is the Lord your God who goes with you. cHe will not leave you or forsake you.”

7Then dMoses summoned Joshua and said to him in the sight of all Israel, e“Be strong and courageous, for you shall go with this people into the land that the Lord has sworn to their fathers to give them, and you shall put them in possession of it.

Joshua 1:7

7Only be strong and fvery courageous, being careful to do according to all the law gthat Moses my servant commanded you. hDo not turn from it to the right hand or to the left, that you may have good success
Or  may act wisely
wherever you go.

Joshua 10:25

25And Joshua said to them, j“Do not be afraid or dismayed; be strong and courageous. kFor thus the Lord will do to all your enemies against whom you fight.”

1 Samuel 4:9

9 lTake courage, and be men, O Philistines, lest you become slaves to the Hebrews mas they have been to you; be men and fight.”

1 Samuel 14:6-12

6Jonathan said to the young man who carried his armor, “Come, let us go over to the garrison of these nuncircumcised. It may be that the Lord will work for us, ofor nothing can hinder the Lord from saving by many or by few.” 7And his armor-bearer said to him, “Do all that is in your heart. Do as you wish.
Septuagint  Do all that your mind inclines to
Behold, I am with you heart and soul.”
8Then Jonathan said, “Behold, we will cross over to the men, and we will show ourselves to them. 9If they say to us, ‘Wait until we come to you,’ then we will stand still in our place, and we will not go up to them. 10But if they say, ‘Come up to us,’ then we will go up, for the Lord has given them into our hand. And this shall be the sign to us.” 11So both of them showed themselves to the garrison of the Philistines. And the Philistines said, “Look, Hebrews are coming qout of the holes where they have hidden themselves.” 12And the men of the garrison hailed Jonathan and his armor-bearer and said, “Come up to us, and we will show you a thing.” And Jonathan said to his armor-bearer, “Come up after me, for the Lord has given them into the hand of Israel.”

1 Samuel 17:32

32And David said to Saul, r“Let no man’s heart fail because of him. sYour servant will go and fight with this Philistine.”

2 Samuel 10:12

12 tBe of good courage, and ulet us be courageous for our people, and for the cities of our God, and vmay the Lord do what seems good to him.”
Copyright information for ESV