At that church, we had no Sunday School hour, so classes were taught during sermons...much like Jr. Church in most Baptist churches. So my class (sixth, seventh and eighth grade) had three teachers that worked on a rotation. As head teacher, I filled in when other teachers were absent (remember, weather in California is milder than weather here, so I could be at church regularly).
One Sunday, the teacher who was scheduled to teach approached me that morning (at church) and said he didn't feel like teaching that day. The other teacher's new boyfriend was visiting our church that day, so she couldn't teach. I looked at my girlfriend and asked, "How can I come up with a lesson in 20 minutes?"
She asked me what I'd been reading in Quiet Time, and I said John 14--"In My Father's house are many mansions." During Praise Time, I really prayed that the Lord would teach that passage through me, because I knew I couldn't do it!
When we got to our class room, I had them pull out construction paper, crayons and glue. I asked them to make their dream houses, and then tell me about them. (I learned a few things about the kids that day!) Then we read John 14:1-6 and talked about our heavenly home and the need to go through Jesus to get there.
Months later, the kids said that was their favorite lesson. I'm sure its success came from the fact that I depended thoroughly on the Lord that day.
And we have such trust through Christ toward God. Not that we are sufficient of ourselves to think of anything as being from ourselves, but our sufficiency is from God, who also made us sufficient as ministers of the new covenant, not of the letter but of the Spirit; for the letter kills, but the Spirit gives life.
~~2 Corinthians 3:4-6 (NKJV)