Matthew 11:12
But from the time of John the Baptist till now, the Kingdom of the Heavens has been suffering violent assault, and the violent have been seizing it by force.
Luke 13:24
"Strain every nerve to force your way in through the narrow gate," He answered; "for multitudes, I tell you, will endeavour to find a way in and will not succeed.
Luke 18:5-7
yet because she annoys me I will give her justice, to prevent her from constantly coming to pester me.'"
Philippians 2:12-13
Therefore, my dearly-loved friends, as I have always found you obedient, labour earnestly with fear and trembling--not merely as though I were present with you, but much more now since I am absent from you--labour earnestly, I say, to make sure of your own salvation.
Colossians 1:29
To this end, like an earnest wrestler, I exert all my strength in reliance upon the power of Him who is mightily at work within me.