The Heavenly crown the Lord promises us is not our salvation! You have Eternal Life through His Son, which is the gift of God. The crown is your reward, given only to winners!--Only those who run and win the race.
God's Word tells us to "endure hardness, as a good soldier of Jesus Christ, and entangle yourself not again in the affairs of this World, that you may please Him Who hath called you to be a soldier!" (2Tim.2:3,4)--But if you fail the Lord, you will lose your reward, and another will take the crown that God intended for you--because He's going to get the job done with or without you! (Rev.3:11)
So watch and pray that ye enter not into temptation that might lead you astray from the straight and narrow way which leads to a higher crown and greater reward! Fight the good fight, keep the faith and finish the course!--And win the crown! Keep your eyes on the goal and your hand on the plow! "Blessed is the man that endureth temptation: For when he is tried, he shall receive a crown of life!" (Jam.1:12) When this life is over, if what you did was right, you'll shine as the stars forever! You'll hear Jesus say to you, "Well done, thou good and faithful servant.--Enter thou into the joy of thy Lord!" (Mat.25:21)