Acts 5:1-11. Ananias and Sapphira were lying to the Holy Spirit and fell down dead. This lead to great fear and great power in the Church.
Proverbs 6 warns against cosigning documents with neighbors, condemns sluggards of their sleepy and lazy habits and points to the destruction of wicked men. It tells about seven detestable things to the LORD, and finally it takes a dim view of adultery, a sure way to destroy yourself and others.
Psalm 41, of David. A prayer for help in sickness and protection from traitors and other enemies.