千中選百 Three Chosen From a Thousand
小妖道:「如今把洞口大小群妖點將起來,千中選百,百中選十,十中只選三個。須是有能幹,會變化的,都變做大王的模樣,頂大王之盔,貫大王之甲,執大王之杵,三處埋伏。小妖道:「如今把洞口大小群妖点将起来,千中选百,百中选十,十中只选三个。须是有能干,会变化的,都变做大王的模样,顶大王之盔,贯大王之甲,执大王之杵,三处埋伏。
逐句解 Line by line
The imp said, "Now muster all the imps at the cave mouth, big and small. From a thousand pick a hundred, from the hundred pick ten, and from the ten pick just three.
In 點將起來 the 將 is the bleached jiāng that sits between a verb and its direction, the same shape as 走將來 and 吃將來 earlier — and not the jiàng of a general, which the fronted object here rules out anyway. The three-step narrowing is rhetoric as much as method: a thousand to a hundred to ten to three, each step said in four characters.
They must be capable and able to change shape. Let them all take Your Majesty's likeness, wear Your Majesty's helmet, put on Your Majesty's armour, carry Your Majesty's pestle, and lie in ambush in three places.
模 is mú in 模樣, a likeness — the third time this chapter has used the word, and the first time for a deliberate copy rather than a description. Helmet, armour, pestle, in three clauses of the same shape: the imp is dressing his decoys out loud.
The selection is the part that makes the plan sound real. Not pick three, but pick a hundred from a thousand and ten from those and three from those — a procedure, recited, and procedures are believed.
And the three copies wear the commander's own gear. That is what makes the decoys credible to the disciples, and it also means the fiend has to give up his kit to a plan he did not devise.