ANSWER: It is my opinion that as much as possible we need to avoid using denominational terminology or phrases, simply because they many times denote and define activities which are unscriptural! However, if by using the term “Sunday School” we mean a certain time set aside on the first day of the week during which people assemble to study the Bible, it is not sin. In fact we are commanded, both by precept and example, to study (2 Timothy 2:15; Acts 17:11). Nothing in God’s Word prohibits us from doing so on Sundays! Of course, “Sunday School” should not be engaged in as a substitute for the scriptural worship assembly (Acts 2:42; Acts 20:7; 1 Corinthians 16:1-2; Hebrews 10:25).