This is Part 1 of "Heart for the House," our series at Fusion Christian Church on growing and maintaining a heart that is passionate about God's people, the church. In the opening sermon for this series, Pastor Zac walks through the first example of worship we have in scripture, the story of Cain and Abel. He explains what the difference is between Cain and Abel in terms of attitude and behavior and encourages us to keep an attitude like Abel, which desires to give the best to God and make sacrifices for and to Him.