The Comforter (Holy Spirit)
²⁴ He that loveth me not keepeth not my sayings: and the word which ye hear is not mine, but the Father's which sent me.  ²⁵ These things have I spoken unto you, being yet present with you.  ²⁶ But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto 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.  ²⁸ 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.  ²⁹ And now I have told you before it come to pass, that, when it is come to pass, ye might believe.
John 14:24 - 29 (KJV)

The Coming of the Lord (The Rapture)
¹³ But I would not have you to be ignorant, brethren, concerning them which are asleep, that ye sorrow not, even as others which have no hope.  ¹⁴ For if we believe that Jesus died and rose again, even so them also which sleep in Jesus will God bring with him.  ¹⁵ For this we say unto you by the word of the Lord, that we which are alive and remain unto the coming of the Lord shall not prevent them which are asleep.  ¹⁶ For the Lord himself shall descend from heaven with a shout, with the voice of the archangel, and with the trump of God: and the dead in Christ shall rise first:  
¹⁷ Then we which are alive and remain shall be caught up together with them in the clouds, to meet the Lord in the air: and so shall we ever be with the Lord.  ¹⁸ Wherefore comfort one another with these words.
1 Thessalonians 4:13 - 18 (KJV)