The words "hands" and "fingers" are synecdoches for "me." If "war" and "battle" are the same word in your language, you can translate this as one line. Alternate translation: "who trains me for war and trains me for battle" or "who trains me for war" (See: [[rc://en/ta/man/translate/figs-synecdoche]] and [[rc://en/ta/man/translate/figs-doublet]] and [[rc://en/ta/man/translate/figs-ellipsis]])