LET'S tear up the neatly lined rows of cloth.
|( を ) さ＊く||
I pick apart something strand by strand - string cheese, cloth, etc. (why they have a word specifically for this is beyond me) . Also, to break people apart, like Romeo and Juliet.
|( が ) さ＊ける||
it gets tore up, it splits
You arrange sticks in a BUNDLE,
but you tear up shit with your SWORD.