Jesus Christ was The Christ because He was perfectly obedient to The Father:
"12:49 For I have not spoken of myself; but the Father which sent me, he gave me a commandment, what I should say, and what I should speak." (John 12:49 KJV)
"10:17 Therefore doth my Father love me, because I lay down my life, that I might take it again. 10:18 No man taketh it from me, but I lay it down of myself. I have power to lay it down, and I have power to take it again. This commandment have I received of my Father." (John 10:17-18 KJV)
The Messiah did not live a righteous life for us; by His sacrifice, He provided the means of salvation to those who choose to obey God, as best that they humanly can, as Christ set the example (Christ did it perfectly; Christian Perfection is a process of being perfected - see The Process Of Conversion). Christ didn't die for sinners; He died for repentant sinners:
"15:9 As the Father hath loved me, so have I loved you: continue ye in my love. 15:10 If ye keep my commandments, ye shall abide in my love; even as I have kept my Father's commandments, and abide in his love." (John 15:9-10 KJV)
"7:21 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. 7:22 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? 7:23 And then will I profess unto them, I never knew you: depart from me, ye that work iniquity. 7:24 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:
7:25 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. 7:26 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: 7:27 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)
"This commandment have I received of my Father"
The obedient Lamb of God, upon His appearing before God after His Sacrifice, was given the power and authority to rule, something that He did not have when He came the first time (see Why Two Comings Of The Christ?). Christ will always be obedient to The Father; God then gave Christ His next set of instructions, written on a scroll ("book") sealed with seven seals.
"5:1 And I saw in the right hand of him that sat on the throne a book written within and on the backside, sealed with seven seals. 5:2 And I saw a strong angel proclaiming with a loud voice, Who is worthy to open the book, and to loose the seals thereof? 5:3 And no man in heaven [see How High Is Heaven?], nor in earth, neither under the earth, was able to open the book, neither to look thereon. 5:4 And I wept much, because no man was found worthy to open and to read the book, neither to look thereon. 5:5 And one of the elders saith unto me, Weep not: behold, the Lion of the tribe of Juda, the Root of David [see The Root and The Offspring and Israelite Monarchy - The Messiah; also Israelite Dynasties], hath prevailed to open the book, and to loose the seven seals thereof.
5:6 And I beheld, and, lo, in the midst of the throne and of the four beasts, and in the midst of the elders, stood a Lamb as it had been slain [see Why Blood?], having seven horns and seven eyes, which are the seven Spirits of God sent forth into all the earth. 5:7 And he came and took the book out of the right hand of him that sat upon the throne 5:8 And when he had taken the book, the four beasts and four and twenty elders fell down before the Lamb, having every one of them harps, and golden vials full of odours, which are the prayers of saints. 5:9 And they sung a new song, saying, Thou art worthy to take the book, and to open the seals thereof: for thou wast slain, and hast redeemed us to God by thy blood out of every kindred, and tongue, and people, and nation;
5:10 And hast made us unto our God kings and priests: and we shall reign on the earth [see The Coming World Dictator].
5:11 And I beheld, and I heard the voice of many angels round about the throne and the beasts and the elders: and the number of them was ten thousand times ten thousand, and thousands of thousands;
5:12 Saying with a loud voice, Worthy is the Lamb that was slain to receive power, and riches, and wisdom, and strength, and honour, and glory, and blessing [see Christ the Conqueror For Peace].
5:13 And every creature which is in heaven, and on the earth, and under the earth, and such as are in the sea, and all that are in them, heard I saying, Blessing, and honour, and glory, and power, be unto him that sitteth upon the throne, and unto the Lamb for ever and ever. 5:14 And the four beasts said, Amen. And the four and twenty elders fell down and worshipped him that liveth for ever and ever." (Revelation 5:1-14 KJV)
Fact Finder: (a) How does the Word of God describe someone who self-righteously claims to be a Christian, but who refuses to strive to obey God's Commandments? (b) What does the Word of God say to those who wickedly claim that they don't have to obey God's Law?
(a) See 1 John 2:3-4 and Do You Know Him?
(b) See Did Jesus Break The Law?, Jot and Tittle, Grace Into Licentiousness