Charles Ellicott Commentary Psalms 69:9

"For the zeal of thy house hath eaten me up; And the reproaches of them that reproach thee are fallen upon me." — Psalms 69:9 (ASV)

Of your house — i.e., for your house. Hosea 8:1, shows that house might stand for congregation, but very probably we are to understand zeal for the restoration or repair of the Temple, or more likely regard for its purity and honour. So at least one applied the words long after, John 2:17 (where see Note in New Testament Commentary).

And the reproaches. —See St. Paul’s application of these words Romans 15:3. If the author had been thinking chiefly of his sin as the cause of the reproach of God, surely he would have said, “the reproaches of those who reproach me have fallen upon You.” The intention seems to be that though in his own eyes a very insignificant and unworthy member of the community, yet being one who burnt with zeal for it, he felt as personally directed against himself all the taunts aimed at Jehovah and His religion.