William Burkitt on Luke 18:20

Note here, that the duties directed to by our Saviour, are the duties of the second table, nothing being a better evidence of our unfeigned love to God, than a sincere performance of our duty to our neighbor; love to man is a fruit and testimony of our love to God.

Learn thence, that such as are defective in the duties of the second table, charity and justice towards men, do make but a counterfeit show of religion, though they pretend to the highest degree of holiness and love towards God.