What did Christ take upon himself?

                              Alma 11:40

And he shall come into the world¹ to redeem² his people; and he shall take upon³ him the transgressions of those who believe on his name; and these are they that shall have eternal life, and salvation cometh to none else.

world¹

~World:

Ecclesiastes 3:11 He hath made every thing beautiful in his time: also he hath set the world in their heart, so that no man can find out the work that God maketh from the beginning to the end.

John 14:17 Even the Spirit of truth; whom the world cannot receive, because it seeth him not, neither knoweth him: but ye know him; for he dwelleth with you, and shall be in you.

 27 Peace I leave with you, my peace I give unto you: not as the world giveth, give I unto you. Let not your heart be troubled, neither let it be afraid.

30 Hereafter I will not talk much with you: for the prince of this world cometh, and hath nothing in me.

31 But that the world may know that I love the Father; and as the Father gave me commandment, even so I do. Arise, let us go hence.

Alma 60:36 Behold, I am Moroni, your chief captain. I seek not for power, but to pull it down. I seek not for honor of the world, but for the glory of my God, and the freedom and welfare of my country. And thus I close mine epistle.

Doctrine and Covenants 138:36 Thus was it made known that our Redeemer spent his time during his sojourn in the world of spirits, instructing and preparing the faithful spirits of the prophets who had testified of him in the flesh;

Moses 1:33 And worlds without number have I created; and I also created them for mine own purpose; and by the Son I created them, which is mine Only Begotten.

upon²

Luke 2:34 And Simeon blessed them, and said unto Mary his mother, Behold, this child is set for the fall and rising again of many in Israel; and for a sign which shall be spoken against;

Romans 11:★26 And so all Israel shall be saved: as it is written, There shall come out of Sion the Deliverer, and shall turn away ungodliness from Jacob:

 27 For this is my covenant unto them, when I shall take away their sins.

take upon³

Exodus 34:7 Keeping mercy for thousands, forgiving iniquity and transgression and sin, and that will by no means clear the guilty; visiting the iniquity of the fathers upon the children, and upon the children’s children, unto the third and to the fourth generation.

1 John 2:2 And he is the propitiation for our sins: and not for ours only, but also for the sins of the whole world.

Mosiah 14:★5 But he was wounded for our transgressions, he was bruised for our iniquities; the chastisement of our peace was upon him; and with his stripes we are healed.

 8 He was taken from prison and from judgment; and who shall declare his generation? For he was cut off out of the land of the living; for the transgressions of my people was he stricken.

Mosiah 15:12 For these are they whose sins he has borne; these are they for whom he has died, to redeem them from their transgressions. And now, are they not his seed?

Doctrine and Covenants 19:16 For behold, I, God, have suffered these things for all, that they might not suffer if they would repent; 

★17 But if they would not repent they must suffer even as I;

 18 Which suffering caused myself, even God, the greatest of all, to tremble because of pain, and to bleed at every pore, and to suffer both body and spirit—and would that I might not drink the bitter cup, and shrink—

Doctrine and Covenants 29:17 And it shall come to pass, because of the wickedness of the world, that I will take vengeance upon the wicked, for they will not repent; for the cup of mine indignation is full; for behold, my blood shall not cleanse them if they hear me not.