Spiritual growth is an essential part of preparing for heaven. “But grow in the grace and knowledge of our Lord and Savior Jesus Christ. To Him be the glory both now and forever. Amen” (2 Peter 3:18). Paul described spiritual growth by saying, “But speaking the truth in love, may grow up in all things into Him who is the head even Christ” (Ephesians 4:15). The Hebrew Christians had to be reminded of the need for spiritual growth. “For when for the time ye ought to be teachers, ye have need that one teach you...