If I am going through a divorce, it will be hard to receive your teaching about the Second Coming.
If am having financial stress, it will be difficult to hear your message on prayer.
People can only hear what relates to their own lives… now.
Of course, eventually, we want to get around to the whole counsel of God. But, one verse at a time. One step at a time. Starting with where the people are right now.
To get to any destination you always start at the same place: you start where you are.
Groups of two or three of four can target the content to the needs of the group. I recommend you take turns selecting what will be studied next. If people are worried, study worry. If they have money on their mind, good. The Bible has a lot to say about money. Marriage troubles? The Bible has a lot to say about that.
No big crisis in your life? (Good for you.) Study key verses in Ephesians or John. But, if you do have drama in your life, (who doesn’t?) study a verse that deals with that.
When the Bible is relevant to everyday life, attendance and attention will never be a problem.