Rev. 5:5 And one of the elders saith unto me, Weep not: behold, the Lion of the tribe of Juda, the Root of David, hath prevailed to open the book, and to loose the seven seals thereof.
Today we shall take up the subject of Jesus as the Root of David. In Isaiah 11:10 Jesus is prophetically called "the root of Jesse." In Revelation 22:16 Jesus is called "the root and offspring of David," and as such is "the bright and morning star." He is also mentioned in Rom. 15:12 And again, Esaias saith, There shall be a root of Jesse, and he that shall rise to reign over the Gentiles; in him shall the Gentiles trust.
The preservation of the Messianic seed throughout the Old Testament is a detailed study in itself, but that preservation is one of the most interesting and exciting studies a Christian can make. The ultimate achievement of this progeny, the Messiah, Jesus, is that he has prevailed and has the authority to open the book that is in his hand and to open the seven seals, behind which are hidden the greatest blessings of Christ.
Joseph, Jesus' earthly father, was a descendant of David and Jesse (See Luke 3:31-32). Mary, Jesus' earthly mother, was also a descendant of David and Jesse (See Matt. 1:6). We read a capsule of Jesus' descendancy in Matt 1:1 The book of the generation of Jesus Christ, the son of David, the son of Abraham.
In Acts 13 Paul delineates this principle of Jesus' ancestry when he said in Acts 13:22 And when he had removed him, he raised up unto them David to be their king; to whom also he gave testimony, and said, I have found David the son of Jesse, a man after mine own heart, which shall fulfil all my will. 23 Of this man’s seed hath God according to his promise raised unto Israel a Saviour, Jesus: So Jesus' Messiahship is based upon the idea that he would be a descendant of Abraham, Jesse, and David. This promise being fulfilled, Jesus appeared as the Savior of men, the only Savior, for he is the only one who can fulfill the promise of a Messiah given to Old Testament Israel.
The following scriptures give promise of the Davidic Messiah.
2 Sam. 7:12 And when thy days be fulfilled, and thou shalt sleep with thy fathers, I will set up thy seed after thee, which shall proceed out of thy bowels, and I will establish his kingdom.
Psalm 132:17 There will I make the horn of David to bud: I have ordained a lamp for mine anointed.
Jer. 23:5 Behold, the days come, saith the LORD, that I will raise unto David a righteous Branch, and a King shall reign and prosper, and shall execute judgment and justice in the earth.
Herein lies our assurance, that God has made promise through his seed, the one seed: Gal. 3:16 Now to Abraham and his seed were the promises made. He saith not, And to seeds, as of many; but as of one, And to thy seed, which is Christ. This one seed is Christ, the one seed who can save a soul from sin and give confidence of eternal security and blessing.