Proof:

Although my house be not so with God; yet he hath made with me an everlasting covenant, ordered in all things, and sure: for this is all my salvation, and all my desire, although he make it not to grow. (2 Sam. 23:5).

The LORD hath sworn in truth unto David; he will not turn from it; Of the fruit of thy body will I set upon thy throne. (Psa. 132:11).

I have made a covenant with my chosen, I have sworn unto David my servant, Thy seed will I establish for ever, and build up thy throne to all generations. Selah. (Psa. 89:3-4).

My covenant will I not break, nor alter the thing that is gone out of my lips. (Psa. 89:34).

It shall be established for ever as the moon, and as a faithful witness in heaven. Selah. (Psa. 89:37).

129. Has the covenant made with David been fulfilled?
Answer: It was fulfilled typically in Solomon; but its real fulfillment is to be in Christ, who was born in David's line and declared to be, not only the Son of God, but the Son of David and heir to David's throne.

Proof:

And the LORD hath performed his word that he spake, and I am risen up in the room of David my father, and sit on the throne of Israel, as the LORD promised, and have built an house for the name of the LORD God of Israel. (1 Kings 8:20).

Men and brethren, let me freely speak unto you of the patriarch David, that he is both dead and buried, and his sepulchre is with us unto this day. Therefore being a prophet, and knowing that God had sworn with an oath to him, that of the fruit of his loins, according to the flesh, he would raise up Christ to sit on his throne; (Acts 2:29-30).

The book of the generation of Jesus Christ, the son of David, the son of Abraham. (Matt. 1:1).

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: (Luke 1:32).

130. Will Christ, then, yet occupy the throne of David?
Answer: He will. At his second coming, he will sit on his throne, and reign in Jerusalem as king of the Jews and ruler of all mankind.

Proof:

When the Son of man shall come in his glory, and all the holy angels with him, then shall he sit upon the throne of his glory: (Matt. 25:31).

Of the increase of his government and peace there shall be no end, upon the throne of David, and upon his kingdom, to order it, and to establish it with judgment and with justice from henceforth even for ever. The zeal of the LORD of hosts will perform this. (Isa. 9:7).

In those days, and at that time, will I cause the Branch of righteousness to grow up unto David; and he shall execute judgment and righteousness in the land. In those days shall Judah be saved, and Jerusalem shall dwell safely: and this is the name wherewith she shall be called, The LORD our righteousness. (Jer. 33:15-16).

Then the moon shall be confounded, and the sun ashamed, when the LORD of hosts shall reign in mount Zion, and in Jerusalem, and before his ancients gloriously. (Isa. 24:23).

At that time they shall call Jerusalem the throne of the LORD; and all the nations shall be gathered unto it, to the name of the LORD, to Jerusalem: neither shall they walk any more after the imagination of their evil heart. (Jer. 3:17).

And many people shall go and say, Come ye, and let us go up to the mountain of the LORD, to the house of the God of Jacob; and he will teach us of his ways, and we will walk in his paths: for out of Zion shall go forth the law, and the word of the LORD from Jerusalem. (Isa. 2:3).

Then the king, when he heard these words, was sore displeased with himself, and set his heart on Daniel to deliver him: and he laboured till the going down of the sun to deliver him. (Dan. 6:14).

131. Is Christ coming to the earth a second time?
Answer: Yes; he will return as really as he went away; and when he comes, men will see him as really as when he was on the earth before.

Proof:

And while they looked stedfastly toward heaven as he went up, behold, two men stood by them in white apparel; (Acts 1:10).

And he shall send Jesus Christ, which before was preached unto you: (Acts 3:20).

So Christ was once offered to bear the sins of many; and unto them that look for him shall he appear the second time without sin unto salvation. (Heb. 9:28).

Beloved, now are we the sons of God, and it doth not yet appear what we shall be: but we know that, when he shall appear, we shall be like him; for we shall see him as he is. (1 John 3:2).

Behold, he cometh with clouds; and every eye shall see him, and they also which pierced him: and all kindreds of the earth shall wail because of him. Even so, Amen. (Rev. 1:7).