In the book of Hebrews Paul explains to the Jews why Jesus Christ is so important. Many of the Christian Jews continued to hold on to the Law of Moses as more important than the Savior. Paul goes about explaining why Jesus Christ is the greatest and most important aspect of our faith.
Paul explains that Jesus Christ is greater than the angels, because they are servants while he is the Son. He is greater than Moses because while Moses was a faithful servant, he is a faithful Son. He is greater than the High Priests of the Law of Moses because while they were High Priests of the Aaronic (or preparatory) Priesthood, he is the Great High Priest of the Melchizedek, (or higher) Priesthood.
In Hebrews 1, Paul gives us three great truths about Jesus Christ.
1. Under the direction of God the Father, he created the world. (verse 2)
2. Jesus Christ paid the price for our sins. (verse 3)
3. Jesus Christ is literally the Son of God. (verse 6)
Jesus Christ is the Son of God. We owe all honor, glory, respect, and allegiance to Him. He is the God of the Old Testament, the creator of the world. So why did he come to earth, be born into the most humble of circumstances, and die on a cross? There are a number of scriptures that address this very question:
Hebrews 2:7-18 teaches us that he had to be tempted like each one of us and take our sins on him so that he could be merciful to us and make salvation possible.
Hebrews 4:13-16 explains that it was necessary for the Son of God to come to this earth so that he could have the ability to understand us perfectly in order for us to feel confident in turning to him with our troubles.
Alma 7:11-15 teaches us that Christ had to take on all of our sicknesses, infirmities, temptations, and pain so that he could fully understand each of us and so that he could win victory over death not only for himself, but for all of us.
Doctrine & Covenants 122:8 teaches that he had to descend below all things in order to truly gain victory over sin and death.
I don't fully understand all of the reasons it was necessary for Jesus Christ to come to this earth and live as he did. I don't fully understand how his living a sinless life and being resurrected makes it possible for all of us to be cleansed from our sins and live again after we die. I may not understand it all, but I am eternally grateful that the Savior did come to earth and accomplished the atonement and resurrection. If it weren't for my testimony of those truths, this life would be so much harder to bear.