That at Jesus Christ's second coming as King of King and Lord of Lords, the dead who are found worthy of eternal life will be brought back to life and caught up into Heaven - This is called the First Resurrection. Also at Jesus Christ's second coming those who are still living and also found worthy of eternal life will be caught up to into Heaven. All these living saints will live with Christ in Heaven.
“...This is the first resurrection. Blessed and holy is he who has part in the first resurrection. Over such the second death has no power...” Revelation 20:5-6
“‘I am the resurrection and the life. He who believes in Me, though he may die, he shall live.’” John 11:25
“‘Let not your heart be troubled; you believe in God, believe also in Me. In My Father’s house are many mansions; if it were not so, I would have told you. I go to prepare a place for you. And if I go and prepare a place for you, I will come again and receive you to Myself; that where I am, there you may be also.’” John 14:1-3