Recently I had the privilege of teaching my church's adult Sunday School class for a few weeks. If you care to listen, here is the audio from four of the five lessons (the second was not uploaded).
Week 1 - Creation, and what it tells us about God and ourselves
Week 3 - Sin and Atonement in Exodus 32-34, and intro to Leviticus
Week 4 - Substitutionary Atonement in Leviticus
Week 5 - The Supremacy of Christ in the book of Hebrews
I hope this will be a blessing to you.
37 minutes ago