Jude 3

Jesus admonished: “Exert yourselves vigorously to get in through the narrow door.” (Lu 13:24) Jesus’ words imply struggling, extending ourselves in order to be approved by God. Jude, Jesus’ half brother, was inspired to write something similar: “Put up a hard fight for the faith.” Diligent effort is needed to do the following:

• Resist sexual immorality.​—Jude 6, 7

• Respect those in positions of authority.​—Jude 8, 9

• Strengthen our belief in the “most holy faith,” Christian teachings.​—Jude 20, 21