[1] Vine, W. E. Vine’s Expository Dictionary of New Testament Words. Nashville, TN: Thomas Nelson, 1996.
[2] Bridges, Jerry. The Practice of Godliness. Colorado Springs, CO: NavPress, 1996.
[3] Piper, John. Don’t Waste Your Life. Wheaton, IL: Crossway Books, 2003.
[4] Sproul, R. C. The Holiness of God. Wheaton, IL: Tyndale House Publishers, 1985.
[5] Covey, Stephen R. The 7 Habits of Highly Effective People. New York, NY: Simon & Schuster, 1989.
[6] Hybels, Bill. Courageous Leadership. Grand Rapids, MI: Zondervan, 2002.
[7] Newport, Cal. Deep Work. New York, NY: Grand Central Publishing, 2016.
[8] Cloud, Henry. Boundaries. Grand Rapids, MI: Zondervan, 2017.