The King upon the throne of Zion is Jesus Christ the only begotten Son of God.
http://www.blueletterbible.org/kjv/Psa/Psa002.html

1 Woe to her that is filthy and polluted, to the oppressing city!

2 She obeyed not the voice; she received not correction; she trusted not in the LORD; she drew not near to her God.

3 Her princes within her are roaring lions; her judges are evening wolves; they gnaw not the bones till the morrow.

4 Her prophets are light and treacherous persons: her priests have polluted the sanctuary, they have done violence to the law.

5 The just LORD is in the midst thereof; he will not do iniquity: every morning doth he bring his judgment to light, he faileth not; but the unjust knoweth no shame.

6 I have cut off the nations: their towers are desolate; I made their streets waste, that none passeth by: their cities are destroyed, so that there is no man, that there is none inhabitant.

7 I said, Surely thou wilt fear me, thou wilt receive instruction; so their dwelling should not be cut off, howsoever I punished them: but they rose early, and corrupted all their doings.

8 Therefore wait ye upon me, saith the LORD, until the day that I rise up to the prey: for my determination is to gather the nations, that I may assemble the kingdoms, to pour upon them mine indignation, even all my fierce anger: for all the earth shall be devoured with the fire of my jealousy.

Deuteronomy 32: 39 See now that I, even I, am he, and there is no god with me: I kill, and I make alive; I wound, and I heal: neither is there any that can deliver out of my hand.

40 For I lift up my hand to heaven, and say, I live for ever.

41 If I whet my glittering sword, and mine hand take hold on judgment; I will render vengeance to mine enemies, and will reward them that hate me.

42 I will make mine arrows drunk with blood, and my sword shall devour flesh; and that with the blood of the slain and of the captives, from the beginning of revenges upon the enemy.

43 Rejoice, O ye nations, with his people: for he will avenge the blood of his servants, and will render vengeance to his adversaries, and will be merciful unto his land, and to his people.

Repent:

1 In those days came John the Baptist, preaching in the wilderness of Judaea, 2 And saying, Repent ye: for the kingdom of heaven is at hand.

3 For this is he that was spoken of by the prophet Esaias, saying, The voice of one crying in the wilderness, Prepare ye the way of the Lord, make his paths straight.

4 And the same John had his raiment of camel's hair, and a leathern girdle about his loins; and his meat was locusts and wild honey. 5 Then went out to him Jerusalem, and all Judaea, and all the region round about Jordan, 6 And were baptized of him in Jordan, confessing their sins.

7 But when he saw many of the Pharisees and Sadducees come to his baptism, he said unto them, O generation of vipers, who hath warned you to flee from the wrath to come? 8 Bring forth therefore fruits meet for repentance: 9 And think not to say within yourselves, We have Abraham to our father: for I say unto you, that God is able of these stones to raise up children unto Abraham. 10 And now also the axe is laid unto the root of the trees: therefore every tree which bringeth not forth good fruit is hewn down, and cast into the fire.

11 I indeed baptize you with water unto repentance: but he that cometh after me is mightier than I, whose shoes I am not worthy to bear: he shall baptize you with the Holy Ghost, and with fire: 12 Whose fan is in his hand, and he will throughly purge his floor, and gather his wheat into the garner; but he will burn up the chaff with unquenchable fire.

13 Then cometh Jesus from Galilee to Jordan unto John, to be baptized of him. 14 But John forbad him, saying, I have need to be baptized of thee, and comest thou to me? 15 And Jesus answering said unto him, Suffer it to be so now: for thus it becometh us to fulfil all righteousness. Then he suffered him. 16 And Jesus, when he was baptized, went up straightway out of the water: and, lo, the heavens were opened unto him, and he saw the Spirit of God descending like a dove, and lighting upon him: 17 And lo a voice from heaven, saying, This is my beloved Son, in whom I am well pleased.

Repentance and Jesus Christ