I praise God for the rich history of theological precision in the Christian church. For this reason I love to study the best confessions of faith and catechisms from church history, including the Heidelberg Catechism (1563).
Consider, for example, how the Heidelberg Catechism opens. Q&A #1 reminds us of the most glorious “permanent things”:
Q. 1: What is thy only comfort in life and death?
A.: That I with body and soul, both in life and death, am not my own, but belong unto my faithful Savior Jesus Christ; who, with His precious blood, hath fully satisfied for all my sins, and delivered me from all the power of the devil; and so preserves me that without the will of my heavenly Father, not a hair can fall from my head; yea, that all things must be subservient to my salvation, and therefore, by His Holy Spirit, He also assures me of eternal life, and makes me sincerely willing and ready, henceforth, to live unto Him.
[Scripture references: 1 Cor. 6:19-20, Rom. 14:7-9, 1 Cor. 3:23, 1 Pet. 1:18-19, John 1:17,1 John 3:8, Heb. 2:14-15, John 6:39, John 10: 28-29, Luke 21:18, Matt. 10:30, Rom. 8:28, 2 Cor. 1:22, 2 Cor. 5:5, Rom. 8:14, Rom. 7:22.]