In many parts of Scripture. All of it is Jesus telling you what you need to know. However, if you want to words of Christ, study the Gospel of John.
DEATH
And as Moses lifted up the serpent in the wilderness, even so must the Son of man be lifted up: That whosoever believeth in him should not perish, but have eternal life. (John 3:14,15)
BURIAL
And Jesus answered them, saying, The hour is come, that the Son of man should be glorified. Verily, verily, I say unto you, Except a corn of wheat fall into the ground and die, it abideth alone: but if it die, it bringeth forth much fruit... And I, if I be lifted up from the earth, will draw all men unto me. (John 12:23,24,32)
RESURRECTION AND ASCENSION
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. And whither I go ye know, and the way ye know...Ye have heard how I said unto you, I go away, and come again unto you. If ye loved me, ye would rejoice, because I said, I go unto the Father: for my Father is greater than I. (John 14:3,4)