V. 7.— Then said I, Lo, I come (in the volume of the book it is written of me,) to do thy will, O God. The volume or roll of the book refers to the manner in which books of old were rolled up. Thus the book which John saw in the right hand of Him that sat upon the throne was written both within and on the back, and sealed with seven seals; consequently, when the first seal was opened, a part of the contents of the book were discovered, and so on with each successive seal, until the whole was exposed to view. The book here mentioned is evidently the Scriptures, which testify of Christ. Moses wrote of Him; to Him give all the prophets witness; and the Psalms exhibit all the secret workings of His mind in the house of his pilgrimage. His love to the law was stronger than death. To magnify and make it honorable He submitted to every privation; He voluntarily endured every hardship; and, finally, laid down His life to restore what His people had taken away. He had received a commandment from His Father to lay down His life; "and how am I straitened,” said He, " till it be accomplished.” Luke 12:50. [Jesus had been manifested to Israel by His baptism; He was buried in and raised from the waters of Jordan, on which occasion the voice from the excellent glory proclaimed Him to be the Son of God, and the Spirit descended and rested upon Him; but this was only a figurative burial. He was to descend into the lower parts of the earth, and to be declared to be the Son of God with power by His resurrection from the dead. Romans 1:4.He was impatient to fill up the measure of His expiatory sufferings. Thus He came to do the will of God, according to the prophecies concerning Him which had gone before; and, in the 40th Psalm, quoted by the Apostle, He expresses the pleasure He had in the hard service which He had undertaken.