Ellicott's Commentary for English Readers - Psalms 51:4
(4) Against thee, thee only . . .—This can refer to nothing but a breach of the covenant-relation by the nation at large. An individual would have felt his guilt against the nation or other individuals, as well as against Jehovah. The fact that St. Paul quotes (from the LXX.) part of the verse in Romans 3:4 (see Note, New Testament Commentary) has naturally opened up an avenue for discussion on the bearing of the words on the doctrines of free-will and predestination. But the immediate object... read more
Ellicott's Commentary for English Readers - Psalms 51:3
(3) For I.—There is an emphatic pronoun in the first clause which we may preserve, at the same time noticing the difference between the violation of the covenant generally in the term transgressions in the first clause, and the offence which made the breach in the second. (See Note Psalms 51:1.) Because I am one who is conscious of my transgressions, and (or, possibly, even) my offence is ever before me.The thought that he had been unfaithful to the covenant was an accusing conscience to him,... read more