Jamieson, Fausset and Brown on Luke 18:23-25

23-25. was very sorrowful--Matthew (Mt 19:22) more fully, "went away sorrowful"; Mark still more, "was sad" or "sullen" at that saying, and "went away grieved." Sorry he was, very sorry, to part with Christ; but to part with his riches would have cost him a pang more. When Riches or Heaven, on Christ's terms, were the alternative, the result showed to which side the balance inclined. Thus was he shown to lack the one all-comprehensive requirement of the law--the absolute subjection of the heart to God, and this want vitiated all his other obediences.