My Dear Theophilus, In my first book I gave you some account of all that Jesus began to do and teach until the time of his ascension. Before he ascended he gave his instructions, through the Holy Spirit, to the special messengers of his choice. For after his suffering he showed himself alive to them in many convincing ways, and appeared to them repeatedly over a period of forty days talking with them about the affairs of the kingdom of God.
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1 IN THE former account [which I prepared], O Theophilus, I made [a continuous report] dealing with all the things which Jesus began to do and to teach
2 Until the day when He ascended, after He through the Holy Spirit had instructed and commanded the apostles (special messengers) whom He had chosen.
3 To them also He showed Himself alive after His passion (His suffering in the garden and on the cross) by [a series of] many convincing demonstrations [unquestionable evidences and infallible proofs], appearing to them during forty days and talking [to them] about the things of the kingdom of God.
1. Acts 1:1 : Luke 1:1-4