The word of God continued to spread; the number of the disciples increased greatly in Jerusalem, and a great many of the priests became obedient to the faith.
That’s odd phrasing. This is telling a certain version of history. Surely this fact would be denied by the Jews at the time. And yet, Luke is trying to paint a picture of the Gospel spreading, to the Jews first (in this section, the focus is on Jerusalem and Peter) and then to the ends of the earth (the big Paul section).
And all who sat in the council looked intently at him [Stephen], and they saw that his face was like the face of an angel.
Here we see one of the inklings and beginning of the long Christian tradition of saint veneration and myth-making (St. George and the Dragon, anyone?)