Matthew 18:15-20 | God calls the church to deal with sin within the body. This is how God deals with his straying sheep.

Matthew 18:12-14 | God is for us, His people, because He doesn't give up on us and leave us to be when we go astray.

Matthew 18:7-11 | Greatness lies not in the power of the person to be great, but in God working in and through the person to be holy.

Hebrews 1:1-2 | God has revealed His mind to us in the Bible. It's called Revelation.