Jamieson, Fausset and Brown on Luke 19:8-10

8-10. stood--before all.

said unto the Lord, Behold, Lord--Mark how frequently Luke uses this title, and always where lordly authority, dignity, or power is intended.

if I have--that is, "so far as I have," for evidently the "if" is so used (as in Php 4:8).

taken by false accusation--defrauded, overcharged (Lu 3:12, 13).

fourfold--The Roman law required this; the Jewish law, but the principal and a fifth more (Nu 5:7). There was no demand made for either; but, as if to revenge himself on his hitherto reigning sin (see on Joh 20:28), and to testify the change he had experienced, besides surrendering the half of his fair gains to the poor, he voluntarily determines to give up all that was ill-gotten, quadrupled. He gratefully addressed this to the "Lord," to whom he owed the wonderful change.