Matthew 11:12
and from the days of John the baptist to this time, the kingdom of heaven is as it were forced into, and the most pressing seize upon it with eagerness.
Luke 13:24
But He said unto them, Strive to enter in at the strait gate; for I tell you, many will desire to enter in, and shall not be able.
Luke 18:5-7
nor regard man, yet because this widow gives me trouble, I will do her justice, least by continually coming she weary me out.
Philippians 2:12-13
Wherefore, my beloved, as ye have always obeyed the gospel, not only in my presence, but now much more in my absence; be still working out your own salvation though with fear and trembling:
Colossians 1:29
in order to which I also labour, striving earnestly according to his energy which operates in me with power.