1. David numbers the fighting men (1-17)
Satan incited David to take a census. God who looks at the heart, was displeased. He saw that David was proud and that he was trusting in himself. Even Joab knew that it was wrong to count the fighting men. But when God punished Israel, David's humble character comes out. He quickly repented and asked God's forgiveness. He was willing to accept God's punishment, but he was very sorry that his sheep had to suffer for his sin. So he prayed about it.
2. The threshing floor of Araunah (18-30)
David wanted to offer a sacrifice to stop the plague. He followed God's directions to build the altar on the threshing floor of Araunah. Araunah wanted to give his threshing floor and oxen to the king, for the sacrifice. But David insisted on paying the full price. He would not offer to God something which cost him nothing.
Application: Lord, help me to be responsible for my sins and repent before you. Teach me to honor you and offer you my best.
One Word: Offer sacrifices that are costly