CH 5, ¶5

Upon their conversion, the followers of Jesus experienced a new and distinct way of private life. In Acts, we hear of their constant prayer after their Master was taken up to heaven. They preached wherever they went, telling people to "repent". They had a system of conduct and disposition of mind that was different from anything they were accustomed to, and different from what was seen in others. Their change was noticeable, and was mentioned numerous times by their teachers. There was a distinct difference in their moral character as Christians, compared to the time before they became Christians. (Tipton)