Getting serious about overcoming sin is a full time job needing whole hearted effort. Jesus told us to turn away from the world and follow Him. Repentance means to turn. One must change his mind and heart while he changes the direction of his affection. We can no longer love the world nor the things of the world.
“Do not love the world or the things in the world. If anyone loves the world, the love of the Father is not in him. 16 For all that is in the world—the desires of the flesh and the desires of the eyes and pride of life—is not from the Father but is from the world. 17 And the world is passing away along with its desires, but whoever does the will of God abides forever” (1 John 2:15–17).
There are some sins that are going to be much harder to stop than others. It may take much prayer, fasting, help from other Christians and Bible study to overcome them. Our Lord does expect us to grow and to become stronger eventually. There is nothing that breeds success more than success. The more often I put the devil to flight the more often I will grow stronger.
“Submit yourselves therefore to God. Resist the devil, and he will flee from you” (James 4:7).
This is a precious promise. There is relief from temptation when we lean on God and resist the devil. We can have a season of refreshing and celebrate victory in Jesus. However, never can we ignore the fact the will not give up he will come back and he will attack us at our weakest place. We need to take time every day to put on the whole armor of God (Ephesians 6:11-13). Be instant in season and out of season means to be ready every moment to defend our souls against the wicked one.