Acts 1:3-4

New International Version - UK

³ After his suffering, he presented himself to them and gave many convincing proofs that he was alive. He appeared to them over a period of forty days and spoke about the kingdom of God. ⁴ On one occasion, while he was eating with them, he gave them this command: ‘Do not leave Jerusalem, but wait for the gift my Father promised, which you have heard me speak about.