There is an enormous difference between growing old in the Lord and growing up in Him. One is automatic and requires no effort at all... just aging. But the other is never automatic, or easy. It calls for personal discipline, continual determination, and spiritual desire. Churches are full of sleepy saints who are merely 'logging time' in God's family.
Growing Up in God's Family (ed. W Publishing Group, 1994) - ISBN: 9780849984907