This document contains a lesson on Sabbath that answers three questions: why we must keep Sabbath, how we must keep Sabbath, and how Sabbath is related to the end times. It discusses that Sabbath must be kept because of creation, redemption from sin, and sanctification by God. Jesus showed how to keep Sabbath by prioritizing human needs over strict rules. Sabbath will be a point of contention in the end times as it signifies loyalty to God as Creator versus evolutionary beliefs. Keeping Sabbath rejects false theories and remembers that God sanctifies believers.