Later he appeared to the eleven as they sat at the table; and he rebuked them for their unbelief and hardness of heart, because they did not believe those who had seen him after he had risen. And he said to them, "Go into all the world and preach the gospel to all creation. He who believes and is baptized will be saved; but he who does not believe will be condemned. read more.
And these signs will accompany those who believe: in my name they will cast out demons; they will speak in new tongues; they will pick up serpents; and if they drink any deadly thing, it will not hurt them; they will lay their hands on the sick, and they will recover."

Luke 24:36-49

As they were saying this, Jesus himself stood among them and said to them, "Peace be with you." But they were startled and frightened, and supposed that they saw a spirit. And he said to them, "Why are you troubled, and why do doubts rise in your hearts? read more.
See my hands and my feet, that it is I myself. Handle me and see, for a spirit does not have flesh and bones as you see I have." When he had said this, he showed them his hands and his feet. And while they still did not believe for joy, and marveled, he said to them, "Have you anything here to eat?" They gave him a piece of broiled fish, and he took it and ate in their presence. Then he said to them, "These are my words which I spoke to you, while I was still with you, that everything written about me in the law of Moses and the prophets and the psalms must be fulfilled." Then he opened their minds, so they could understand the Scriptures. And he said to them, "Thus it is written, that the Christ should suffer and rise again from the dead the third day, and that repentance and forgiveness of sins should be preached in his name to all nations, beginning at Jerusalem. You are witnesses of these things. And behold, I send the promise of my Father upon you; but stay in the city, until you are clothed with power from on high."

John 20:19-23

On the evening of that day, the first day of the week, the doors being shut where the disciples were, for fear of the Jews, Jesus came and stood among them and said to them, "Peace be with you." When he had said this, he showed them his hands and his side. Then the disciples were glad when they saw the Lord. Jesus said to them again, "Peace be with 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."