We must remain faithful to God at all cost
As christians we live in this world but God has delivered us out of it. After being delivered out from the world - we must empty ourselves of the world. We must forsake it to serve Jesus alone. We cannot serve two masters. We must remain faithful to God at all cost. For the world and all it's enticements are only temporary and will soon pass away. Only God and His promises of salvation and reward will last forever - for those who serve Him.

So I want to remind you, though you already know these things, that Jesus first rescued the nation of Israel from Egypt, but later he destroyed those who did not remain faithful. And I remind you of the angels who did not stay within the limits of authority God gave them but left the place where they belonged. God has kept them securely chained in prisons of darkness, waiting for the great day of judgment. And don’t forget Sodom and Gomorrah and their neighboring towns, which were filled with immorality and every kind of sexual perversion. Those cities were destroyed by fire and serve as a warning of the eternal fire of God’s judgment. Jude 1:5-7