Was written... hath eaten me up. — More literally, is written... shall eat me up. The verse is full of interest in many ways. It gives us the thought of the disciples at the time (comp. John 2:22) which could be known only to one of their number. It shows us what we too seldom realise in reading the New Testament, that the Jewish mind was filled to overflowing with thoughts of the Old Testament. The child was taught to say by heart large portions of the Law and Psalms and Prophets, and they formed the very texture of the mind, ready to pass into conscious thought whenever occasion suggested. With the exception of the 22nd Psalm, no part of the Old Testament is so frequently referred to in the New as the psalm from which these words are taken (Psalms 69:9), and yet that psalm could not have been in its historic meaning Messianic (see, e.g., John 2:5; John 2:22-25). This reference to it gives us, then, their method of interpretation. Every human life is typical. The persecution without reason, the wrong heaped upon the innocent, the appeal to and trust in Jehovah, the song of thanksgiving from him whose parched throat was weary of calling — all this was true of some representative sufferer of earlier days, and we may hear in it almost certainly the voice of Jeremiah; but it was true of him in that he was a forerunner of the representative sufferer. The darker features of the psalm belong to the individual; the Life which sustains in all, and the Light which illumines in all, was even then in the world, though men knew Him not. The words of Jeremiah are Messianic, because his life — like every noble, self-forgetting, others’ sorrow bearing, man and God loving life — was itself Messianic.
The change of tense, from the past of the Psalmist to the future here, is itself significant. The words were true of the inner burning which consumed the prophet-priest. They come to the heart as true, with a fuller truth, of Christ’s spirit burning with righteous indignation, and cast down by deepest sorrow; but shrinking not from the painful task, which leaves its mark falling on that face as the shadow of a deeper darkness. They are to be, in a deeper sense, truer still.