“21 Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven.
22 Many will say to me in that day, Lord, Lord, have we not prophesied in thy name? and in thy name have cast out devils? and in thy name done many wonderful works?
23 And then will I profess unto them, I never knew you: depart from me, ye that work iniquity.
24 Therefore whosoever heareth these sayings of mine, and doeth them, I will liken him unto a wise man, which built his house upon a rock:
25 And the rain descended, and the floods came, and the winds blew, and beat upon that house; and it fell not: for it was founded upon a rock.
26 And every one that heareth these sayings of mine, and doeth them not, shall be likened unto a foolish man, which built his house upon the sand:
27 And the rain descended, and the floods came, and the winds blew, and beat upon that house; and it fell: and great was the fall of it. ”
Matthew 7:21-27 KJV

Claiming Christ is king is one thing, but those who loves Him keep His Commandments(all of them):

“15 If ye love me, keep my commandments.
21 He that hath my commandments, and keepeth them, he it is that loveth me: and he that loveth me shall be loved of my Father, and I will love him, and will manifest myself to him. ”
John 14:15, 21 KJV

Christ kingdom is not of this world:

“33 Then Pilate entered into the judgment hall again, and called Jesus, and said unto him, Art thou the King of the Jews?
36 Jesus answered, My kingdom is not of this world: if my kingdom were of this world, then would my servants fight, that I should not be delivered to the Jews: but now is my kingdom not from hence. ”
John 18:33, 36 KJV

Christ’s faithful subjects will receive the kingdom when He comes again:

“1 Let not your heart be troubled: ye believe in God, believe also in me.
2 In my Father’s house are many mansions: if it were not so, I would have told you. I go to prepare a place for you.
3 And if I go and prepare a place for you, I will come again, and receive you unto myself; that where I am, there ye may be also. ”
John 14:1-3 KJV