Charles H. Spurgeon on Psalms 50:8

I will not reprove thee for thy sacrifices or thy burnt offerings, to have been ever before me. Though they had not failed in maintaining his outward worship, or even if they had, he was not about to call them to account for this: a more weighty matter was now under consideration. They thought the daily sacrifices and the abounding burnt offerings to be everything: he counted them nothing if the inner sacrifice of heart devotion had been neglected. What was greatest with them was least with God. It is even so today. Sacraments (so called) and sacred rites are them main concern with unconverted but religious men, but with the Most High the spiritual worship which they forget is the sole matter. Let the external be maintained by all means, according to the divine command, but if the secret and spiritual be not in them, they are a vain oblation, a dead ritual, and even an abomination before the Lord.