將功折罪 Merit Set Against Guilt
三人都到馬邊,那馬跳將起來,口吐人言,厲聲高叫道:「師兄,你豈不知?我本是西海飛龍,因為犯了天條,觀音菩薩救了我,將我鋸了角,退了鱗,變作馬,馱師父往西天取經,將功折罪。三人都到马边,那马跳将起来,口吐人言,厉声高叫道:「师兄,你岂不知?我本是西海飞龙,因为犯了天条,观音菩萨救了我,将我锯了角,退了鳞,变作马,驮师父往西天取经,将功折罪。
逐句解 Line by line
All three came up to the horse, and the horse sprang to its feet, spoke with a human voice, and cried out sharply, "Elder brother, do you not know?
口吐人言 — his mouth put forth human speech — is the standard formula for an animal beginning to talk, and the white horse has not needed it for a very long time. 將 in 跳將起來 is again jiāng, the push-along word.
"I was a flying dragon of the Western Ocean. Because I broke the ordinances of Heaven, the Bodhisattva Guanyin saved me — sawed off my horns, stripped away my scales, and turned me into a horse to carry the Master west after the scriptures, so that merit might offset my guilt."
He is quoting the terms of his own sentence. 將功折罪 — merit set against guilt — comes out of the language of criminal sentencing, a commuted penalty worked off by service, and he applies it to himself without softening it at all. 將 is jiāng twice here, taking an object forward. 因為 keeps wèi, the causal. 折 is zhé, to offset.
The horse speaks and the register changes completely. The formula for an animal taking human speech is a standard one, and the white horse has not needed it for a very long stretch of the journey.
What he says is the terms of his own sentence. He broke the ordinances of Heaven; Guanyin commuted the penalty; the horns were sawn off and the scales stripped; and carrying the Master west is the service by which the debt gets worked off. It is the language of criminal sentencing, and he uses it about himself without softening a word.