四分律行事鈔資持記 1.221

1.221

義設者。以前諸教，雖令作相，尚無倫序。故須酌理安布儀式。而先文後義者，欲彰行事並出正教，非是徒然。

As for "logical arrangement": although the preceding teachings mandated giving signals, there was not yet an orderly arrangement. Therefore, one must weigh principles and arrange the ceremonies. Placing the text first and the logic afterward is intended to show that active transactions all stem from correct scriptural teachings and are not in vain.