Kaiser is presenting his approach on understanding the Messianic passages in the Old Testament with the views of the promise that God had given Abraham, Isaac, Jacob, and David. He spends three chapters in his book on the Psalms, in the light of the promise to David. He feels that there is foreshadowing in the Psalms of the coming Messiah, especially in the Psalms that David wrote (98). David stated in Psalm 110: 1 "The Lord says to my Lord 'Sit at my right hand until I make your enemies a footstool for your feet.' " This may be showing that David knows that the one who is coming from him is greater than him.
Kaiser lists at least sixteen different Psalms that have references to the prophecy of the coming Messiah. God had promised David that his Kingdom would endure forever (2 Samuel 7:16). "2 Samuel 7...This chapter sets the tone for the promise plan of God throughout the rest of the Old Testament" (78). Kaiser is looking at other prophecies of the Messiah coming from the promise that God had given David in chapter 7 of 2 Samuel. Kaiser is also showing in Isaiah 55 that all of the benefits of the covenant that God made with David are still in the front of God's mind and are being worked on in God's time. Isaiah 55 shows that the Messiah who is coming will complete the Davidic Covenant.
Isaiah 55:3-5 is talking about how the people can come and quench their thirst and that they can find that the Lord will be there for them when ever they need Him. Isaiah is making a reference to the covenant that He made with David. Verse 4 states "See, I have made him a witness to the people." This is showing that God is keeping His promise to the people of Israel. "The gift of Messiah himself, for God has given him as a gift to the people" (182). God did not have to give people anything but He did. This is God's way of showing the people that He is completing the promise that He made with ...