What's the key to healthy Christian growth in godliness?

What's the key to Christian growth in godliness? Here's some answers. For a full compiled list of quotes, I pick and chose from a blog post on Strawberry-Rhubarb Theology.

Douglas Moo:

"The constant, disciplined practice of reminding ourselves who we are in Christ."

Ray Ortlund:

"Applying the interruptive ‘But now’ of Romans 3:21 to my heart moment by moment."

Tom Schreiner:

"The key to growth is trust in God, and faith comes from hearing God’s word."

Justin Taylor:

"The key to healthy growth in godliness is to seek and to enjoy fellowship with the Father, in union with Christ, through the power of the Spirit, in accordance with the Word, with the body of Christ."

Jared Wilson:

"As pat as the answer may sound, the key to healthy Christian growth in godliness is submissive study of the Scriptures."

General Updates:

• I'm afraid I haven't been able to update too much recently, just with things getting busy as I prepare to go to Jordan. I'll most likely figure out a schedule for blog-posting once I get to Jordan, mostly likely just once a week as a recap of the last seven days; this is mainly because of the limited access to the internet I will have there.
• I have decided on the reading material I'll be bringing with me to Jordan: Bible, Kindle, and Studies in the Sermon on the Mount by Lloyd-Jones. Worth re-reading, and it's a good to use as a devotional to supplement my quiet times.