A selection of verses showing that Jesus raised people from the dead in the past and will do so again when he comes again:
Jesus raised the son of a widow at Nain:
14 He came near and touched the coffin, and the bearers stood still. He said, “Young man, I tell you, arise!” 15 He who was dead sat up, and began to speak. And he gave him to his mother.
He raised Jairus' daughter:
54 But he put them all outside, and taking her by the hand, he called, saying, “Child, arise!” 55 Her spirit returned, and she rose up immediately. He commanded that something be given to her to eat.
He also raised his freind Lazarus:
43 When he had said this, he cried with a loud voice, “Lazarus, come out!”
44 He who was dead came out, bound hand and foot with wrappings, and his face was wrapped around with a cloth.
Jesus said to them, “Free him, and let him go.”
On several occasions Jesus said that God has given him authority and power to raise the dead:
26 For as the Father has life in himself, even so he gave to the Son also to have life in himself. 27 He also gave him authority to execute judgement, because he is a son of man. 28 Don’t marvel at this, for the hour comes in which all who are in the tombs will hear his voice, 29 and will come out; those who have done good, to the resurrection of life; and those who have done evil, to the resurrection of judgement.
39 This is the will of my Father who sent me, that of all he has given to me I should lose nothing, but should raise him up at the last day. 40 This is the will of the one who sent me, that everyone who sees the Son, and believes in him, should have eternal life; and I will raise him up at the last day.”
2 even as you gave him authority over all flesh, so he will give eternal life to all whom you have given him. 3 This is eternal life, that they should know you, the only true God, and him whom you sent, Jesus Christ.
These chapters have links to this theme: