And summoning his twelve disciples, he gave them authority over unclean spirits, so that they could expel [them] and could heal every disease and every sickness.

Matthew 28:19

Therefore, go [and] make disciples of all the nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit,

Jesus Christ » History of » Appears in the midst of the disciples, when thomas was absent (in jerusalem)

Mark 16:14-18

And later, [while] they were reclining at table, he appeared to the eleven. And he reprimanded their unbelief and hardness of heart, because they did not believe those who had seen him [after he] had been raised. And he said to them, "Go into all the world [and] preach the gospel to all creation. The one who believes and is baptized will be saved, but the one who refuses to believe will be condemned. read more.
And these signs will accompany those who believe: in my name they will expel demons, they will speak in new tongues, they will pick up snakes. And if they drink any deadly [poison] it will never hurt them; they will lay hands on the sick and {they will get} well."

Luke 24:36-49

And [while] they were saying these [things], he himself stood there among them. But they were startled and became terrified, [and] thought [they] had seen a ghost. And he said to them, "Why are you frightened? And for what [reason] do doubts arise in your hearts? read more.
Look at my hands and my feet, that I am I myself! Touch me and see, because a ghost does not have flesh and bones, as {you see that I have}." And [when he] had said this, he showed them [his] hands and [his] feet. And [while] they were still disbelieving because of joy and were marveling, he said to them, "Do you have anything {to eat} here?" So they gave him a piece of broiled fish, and he took [it] [and] ate [it] in front of them. And he said to them, "These [are] my words that I spoke to you [while I] was still with you, that everything that is written about me in the law of Moses and the prophets and psalms must be fulfilled." Then he opened their minds to understand the scriptures, and said to them, "Thus it is written [that] the Christ would suffer and would rise from the dead on the third day, and repentance and the forgiveness of sins would be proclaimed in his name to all the nations, beginning from Jerusalem. You are witnesses of these [things]. And behold, I am sending out what was promised by my Father upon you, but you stay in the city until you are clothed with power from on high."

John 20:19-23

Now [when it] was evening on that day--the first [day] of the week--and the doors had been shut where the disciples were because of fear of the Jews, Jesus came and stood in their midst and said to them, "Peace to you." And [when he] had said this, he showed [his] hands and [his] side to them. Then the disciples rejoiced [when they] saw the Lord. So Jesus said to them again, "Peace to you. As the Father has sent me, I also send you." read more.
And [when he] had said this, he breathed on [them] and said to them, "Receive the Holy Spirit. If you forgive the sins of any, they are forgiven them. If you retain [the sins] of any, they are retained."