Heidelberg Q1: Thy only comfort

This post is the beginning of a weekly series on my thoughts on the Heidelberg Catechism, a historical confession of faith with a distinct Calvinist flavor and remarkably beautiful language.

Q1. 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 Saviour Jesus Christ; who, with his precious blood, has 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 proofs: Rom14:7-8, 1Cor6:19, 1Cor.3:23, Tit2:14, 1Pet1:18-19,1John1:7, 1John2:2, 1John2:12, Heb2:14, 1John3:8, John8:34-36, John6:39, John10:28, 2Thess3:3, 1Pet1:5, Matt10:29-31, Luke21:18, Rom8:28, 2Cor.1:20-22, 2Cor5:5, Eph1:13, Eph1:14, Rom8:16, Rom8:14, 1John3:3

This first question can be taken as a summary of the whole of the catechism (see Wikipedia) but personally, it reminds me of the passage we studied this week in the Mens' Bible Study regarding having confidence (taking comfort) in our salvation - Hebrews 10:19f:

Therefore, brothers, since we have confidence to enter the holy places by the blood of Jesus, by the new and living way that he opened for us through the curtain, that is, through his flesh, and since we have a great priest over the house of God, let us draw near with a true heart in full assurance of faith, with our hearts sprinkled clean from an evil conscience and our bodies washed with pure water. Let us hold fast the confession of our hope without wavering, for he who promised is faithful ... Therefore, do not throw away your confidence, which has a great reward. For you have need of endurance, so that when you have done the will of God you may receive what is promised ... But we are not of those who shrink back and are destroyed, but of those who have faith and preserve their souls.