2 Samuel 17:10 (BSB)

Then even the most valiant soldier with the heart of a lion will melt with fear, because all Israel knows that your father is a mighty man who has valiant men with him.

From 2 Samuel 17. Also in the ESV.

Commentary on 2 Samuel 17:10

• Matthew Henry (Presbyterian), Matthew Henry's Complete Commentary on 2 Samuel 17:1-14: Absalom is now in peaceable possession of Jerusalem; the palace-royal is his own, as are the thrones of judgment, even the thrones of the house of David. His good father reigned in Hebron, and only over the tribe of Judah, above seven years, and was not hasty to destroy his rival; his government was built upon a divine promise, the performance of which he was...
• John Gill (Reformed Baptist), Exposition of the Old and New Testaments on 2 Samuel 17:10: Therefore I counsel,.... My advice is as follows: that all Israel be generally gathered unto thee, from Dan even to Beersheba, as the sand that is by the sea for multitude: not all the inhabitants of the land, but such as are fit to bear arms, or that were soldiers, employed in military affairs, in keeping garrisons, guarding the coasts, &c.
• Keil & Delitzsch (Lutheran), Biblical Commentary on the Old Testament on 2 Samuel 17:10: 2Sa 17:10 “And even if he (the hearer, 2Sa 17:9) be a brave man, who has a lion’s heart (lion-like courage), he will be thrown into despair; for all Israel knows that thy father is a hero, and brave men (are those) who are with him.”