The Davidic Covenant David and the Throne.

God promised David that his dynasty would last forever, ultimately pointing to a Messianic King:  Eternal Throne - “…I will raise up your offspring after you… and I will establish the throne of his kingdom forever” (2 Samuel 7:12-13).  Prophetic Fulfillment - Scripture ties this covenant to Jesus, descendant of David, the promised eternal King (cf. Luke 1:32-33).

• Resource: BibleHub

Read 2 Samuel Chapter 7 and 1 Chronicles Chapter 17

2 Samuel 7

[1] And it came to pass, when the king sat in his house, and the LORD had given him rest round about from all his enemies;
[2] That the king said unto Nathan the prophet, See now, I dwell in an house of cedar, but the ark of God dwelleth within curtains.
[3] And Nathan said to the king, Go, do all that is in thine heart; for the LORD is with thee.
[4] And it came to pass that night, that the word of the LORD came unto Nathan, saying,
[5] Go and tell my servant David, Thus saith the LORD, Shalt thou build me an house for me to dwell in?
[6] Whereas I have not dwelt in any house since the time that I brought up the children of Israel out of Egypt, even to this day, but have walked in a tent and in a tabernacle.
[7] In all the places wherein I have walked with all the children of Israel spake I a word with any of the tribes of Israel, whom I commanded to feed my people Israel, saying, Why build ye not me an house of cedar?
[8] Now therefore so shalt thou say unto my servant David, Thus saith the LORD of hosts, I took thee from the sheepcote, from following the sheep, to be ruler over my people, over Israel:
[9] And I was with thee whithersoever thou wentest, and have cut off all thine enemies out of thy sight, and have made thee a great name, like unto the name of the great men that are in the earth.
[10] Moreover I will appoint a place for my people Israel, and will plant them, that they may dwell in a place of their own, and move no more; neither shall the children of wickedness afflict them any more, as beforetime,
[11] And as since the time that I commanded judges to be over my people Israel, and have caused thee to rest from all thine enemies. Also the LORD telleth thee that he will make thee an house.
[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.
[13] He shall build an house for my name, and I will stablish the throne of his kingdom for ever.
[14] I will be his father, and he shall be my son. If he commit iniquity, I will chasten him with the rod of men, and with the stripes of the children of men:
[15] But my mercy shall not depart away from him, as I took it from Saul, whom I put away before thee.
[16] And thine house and thy kingdom shall be established for ever before thee: thy throne shall be established for ever.
[17] According to all these words, and according to all this vision, so did Nathan speak unto David.
[18] Then went king David in, and sat before the LORD, and he said, Who am I, O Lord GOD? and what is my house, that thou hast brought me hitherto?
[19] And this was yet a small thing in thy sight, O Lord GOD; but thou hast spoken also of thy servant's house for a great while to come. And is this the manner of man, O Lord GOD?
[20] And what can David say more unto thee? for thou, Lord GOD, knowest thy servant.
[21] For thy word's sake, and according to thine own heart, hast thou done all these great things, to make thy servant know them.
[22] Wherefore thou art great, O LORD God: for there is none like thee, neither is there any God beside thee, according to all that we have heard with our ears.
[23] And what one nation in the earth is like thy people, even like Israel, whom God went to redeem for a people to himself, and to make him a name, and to do for you great things and terrible, for thy land, before thy people, which thou redeemedst to thee from Egypt, from the nations and their gods?
[24] For thou hast confirmed to thyself thy people Israel to be a people unto thee for ever: and thou, LORD, art become their God.
[25] And now, O LORD God, the word that thou hast spoken concerning thy servant, and concerning his house, establish it for ever, and do as thou hast said.
[26] And let thy name be magnified for ever, saying, The LORD of hosts is the God over Israel: and let the house of thy servant David be established before thee.
[27] For thou, O LORD of hosts, God of Israel, hast revealed to thy servant, saying, I will build thee an house: therefore hath thy servant found in his heart to pray this prayer unto thee.
[28] And now, O Lord GOD, thou art that God, and thy words be true, and thou hast promised this goodness unto thy servant:
[29] Therefore now let it please thee to bless the house of thy servant, that it may continue for ever before thee: for thou, O Lord GOD, hast spoken it: and with thy blessing let the house of thy servant be blessed for ever.

1 Chronicles 17

[1] Now it came to pass, as David sat in his house, that David said to Nathan the prophet, Lo, I dwell in an house of cedars, but the ark of the covenant of the LORD remaineth under curtains.
[2] Then Nathan said unto David, Do all that is in thine heart; for God is with thee.
[3] And it came to pass the same night, that the word of God came to Nathan, saying,
[4] Go and tell David my servant, Thus saith the LORD, Thou shalt not build me an house to dwell in:
[5] For I have not dwelt in an house since the day that I brought up Israel unto this day; but have gone from tent to tent, and from one tabernacle to another.
[6] Wheresoever I have walked with all Israel, spake I a word to any of the judges of Israel, whom I commanded to feed my people, saying, Why have ye not built me an house of cedars?
[7] Now therefore thus shalt thou say unto my servant David, Thus saith the LORD of hosts, I took thee from the sheepcote, even from following the sheep, that thou shouldest be ruler over my people Israel:
[8] And I have been with thee whithersoever thou hast walked, and have cut off all thine enemies from before thee, and have made thee a name like the name of the great men that are in the earth.
[9] Also I will ordain a place for my people Israel, and will plant them, and they shall dwell in their place, and shall be moved no more; neither shall the children of wickedness waste them any more, as at the beginning,
[10] And since the time that I commanded judges to be over my people Israel. Moreover I will subdue all thine enemies. Furthermore I tell thee that the LORD will build thee an house.
[11] And it shall come to pass, when thy days be expired that thou must go to be with thy fathers, that I will raise up thy seed after thee, which shall be of thy sons; and I will establish his kingdom.
[12] He shall build me an house, and I will stablish his throne for ever.
[13] I will be his father, and he shall be my son: and I will not take my mercy away from him, as I took it from him that was before thee:
[14] But I will settle him in mine house and in my kingdom for ever: and his throne shall be established for evermore.
[15] According to all these words, and according to all this vision, so did Nathan speak unto David.
[16] And David the king came and sat before the LORD, and said, Who am I, O LORD God, and what is mine house, that thou hast brought me hitherto?
[17] And yet this was a small thing in thine eyes, O God; for thou hast also spoken of thy servant's house for a great while to come, and hast regarded me according to the estate of a man of high degree, O LORD God.
[18] What can David speak more to thee for the honour of thy servant? for thou knowest thy servant.
[19] O LORD, for thy servant's sake, and according to thine own heart, hast thou done all this greatness, in making known all these great things.
[20] O LORD, there is none like thee, neither is there any God beside thee, according to all that we have heard with our ears.
[21] And what one nation in the earth is like thy people Israel, whom God went to redeem to be his own people, to make thee a name of greatness and terribleness, by driving out nations from before thy people, whom thou hast redeemed out of Egypt?
[22] For thy people Israel didst thou make thine own people for ever; and thou, LORD, becamest their God.
[23] Therefore now, LORD, let the thing that thou hast spoken concerning thy servant and concerning his house be established for ever, and do as thou hast said.
[24] Let it even be established, that thy name may be magnified for ever, saying, The LORD of hosts is the God of Israel, even a God to Israel: and let the house of David thy servant be established before thee.
[25] For thou, O my God, hast told thy servant that thou wilt build him an house: therefore thy servant hath found in his heart to pray before thee.
[26] And now, LORD, thou art God, and hast promised this goodness unto thy servant:
[27] Now therefore let it please thee to bless the house of thy servant, that it may be before thee for ever: for thou blessest, O LORD, and it shall be blessed for ever.

Scripture ties this covenant to Jesus, descendant of David, the promised eternal King.

Luke 1:26-33

[26] And in the sixth month the angel Gabriel was sent from God unto a city of Galilee, named Nazareth,
[27] To a virgin espoused to a man whose name was Joseph, of the house of David; and the virgin's name was Mary.
[28] And the angel came in unto her, and said, Hail, thou that art highly favoured, the Lord is with thee: blessed art thou among women.
[29] And when she saw him, she was troubled at his saying, and cast in her mind what manner of salutation this should be.
[30] And the angel said unto her, Fear not, Mary: for thou hast found favour with God.
[31] And, behold, thou shalt conceive in thy womb, and bring forth a son, and shalt call his name JESUS.
[32] He shall be great, and shall be called the Son of the Highest: and the Lord God shall give unto him the throne of his father David:
[33] And he shall reign over the house of Jacob for ever; and of his kingdom there shall be no end.