Luke wrote the book of ACT and was the only Gentile saint and a writer of the book of Luke. He was also educated and a physician.
THE BEGINNING OF THE CHURCH
The former words have I made, O Theophilus (friend of God), of all that Jesus began both to perform and teach,
Until the day in which he was taken up, after that he because of the Holy Ghost had given charge unto the messengers whom he had chosen:
To whom also he presented himself alive after his sufferings by many infallible proofs, being seen of them forty days, and speaking of the things as touching the reign of God:
And, assembled together with them, charged them that they should not separate from Jerusalem but to stay around for the announcement of the Father, which, saith he, you have reported of me.
For John indeed fully overwhelmed with water: but you shall be fully overwhelmed with the Holy Ghost not many days hence.
When they certainly were assembled, they desired of him, saying, God, will thou by this time restore again the royalty, the reign to Israel?
And he answered them, meaneth not for you to understand, the times or the opportunity that the Father hath appointed in his own authority.
Indeed you shall take hold of miraculous power after that the Holy Ghost is in you and you will be records unto me whether in Jerusalem, and in all Judaea, and in Samaria, and unto the latter end of the earth.
And when he had brought word of these things, while they looked on, he was taken up; and a cloud received him away from their sight.
And while they looked held their eyes toward the sky as he indeed traveled up, behold, two men stood by them in white clothes;
Who also said, Ye men of Galilee, why stand you here looking up in the sky? This man Jesus, that is taken up from you into the sky shall in that way come that way as you have seen him go into the sky. (Ref: Matthew 24, Mark 13, Luke 21)
The returned they to Jerusalem from the mount called Olivet, which is from Jerusalem a week journey.
And when they had entered in, they went up into an upper room, where resided both Peter (the rock) and James, and John and Andrew, Philip and Thomas, Bartholomew, and Matthew, James, the son of Alphaeus, a Simon Zelotes, and Judas the brother of James.
These all continued with one mind in worship and prayer, with the women, and Mary the mother of Jesus, and with his brethren.
And in those days Peter stood up in the midst of the pupils, and said, (the number of names together were about an hundred and twenty,)
Men and brethren, this Holy writing should be fully preached that the Holy Ghost by the mouth of David spake before concerning Judas, was the leader to them that conceived Jesus.
For he was reckoned with us, and had obtained inheritance of this ministry.
Now this man purchased land with the wages of unrighteousness and falling leaning forward he cracked open in the midst of us and all his intestines gushed out.
And it was known unto all the residents at Jerusalem; insomuch as that land is named in their own language, Aceldama, that is to say, The land of blood.
For it is described in the scroll of Psalms, Let his dwelling become a wilderness and let no man reside therein: and his office of a bishop let another receive.
But these men which have come together with us all the time that the Lord Jesus went in and out among us,
Beginning from the baptism of John, unto that same day that he was received up from us, should one be required to be a witness with us of his resurrection.
And they appointed two, Joseph called Barsabas, who was surnamed Justus, and Matthias.
And they prayed, and said, Thou, God, which knows the hearts of all men, appoint which of these two thou hast chosen,
That he may receive inheritance of this ministry and apostleship from which Judas by transgression fell, that he might travel to his own place.
And they delivered their inheritance; and the inheritance fell upon Matthias and he was named with the eleven apostles.