en_tn_lite_do_not_use/2sa/17/10.md

whose hearts are like the heart of a lion

Here the soldiers are refers to by their "hearts." Also, their strong bravery is compared to that of a lion's. Alternate translation: "who are as brave as lions" or "who are very brave" (See: rc://en/ta/man/translate/figs-synecdoche and rc://en/ta/man/translate/figs-simile)