Martyn Lloyd-Jones
No man can believe the gospel in and of himself; the power of the Spirit alone can lead anyone to belief; without it we are spiritually dead and lost and ruined and under the wrath of God.

At the same time, pray also for us, that God may open to us a door for the word, to declare the mystery of Christ, on account of which I am in prison— that I may make it clear, which is how I ought to speak.
Colossians 4:3-4