40 With many other words he warned them; and he pleaded with them, “Save yourselves from this corrupt generation.” 41 Those who accepted his message were baptized, and about three thousand were added to their number that day.42 They devoted themselves to the apostles’ teaching and to fellowship, to the breaking of bread and to prayer.
Some people wavered in their faith, and others fell away completely.
It is not enough to have Christ set before us unless we are also taught to run away from those things that take us away from Christ.
Faith’s starting point is an eager desire to obey. Many people start like this but later fall away. To show that these people had no sudden impulse but later collapsed, Luke later commends their perseverance by saying that they joined the apostles and followed their teaching. So we must not be slow to obey or quick to retreat but must hold on to the teaching we embraced.