The Heidelberg Catechism

Q1: What is thy only comfort in life and death?
That I with body and soul, both in life and death, ( rom 14:7 rom 14:8 ) am not my own, ( 1 Corinthians 6:19 ) but belong unto my faithful Saviour Jesus Christ; ( 1 Corinthians 3:23 ; Titus 2:14 ) who, with his precious blood, has fully satisfied for all my sins, ( 1pet 1:18 1pet 1:19 ; 1 John 1:7 ; 1john 2:2 1john 2:12 ) and delivered me from all the power of the devil; ( Hebrews 2:14 ; 1 John 3:8 ; John 8:34-36 ) and so preserves me ( John 6:39 ; John 10:28 ; 2 Thessalonians 3:3 ; 1 Peter 1:5 ) that without the will of my heavenly Father, not a hair can fall from my head; ( Matthew 10:29-31 ; Luke 21:18 ) yea, that all things must be subservient to my salvation, ( Romans 8:28 ) and therefore, by his Holy Spirit, He also assures me of eternal life, ( 2 Corinthians 1:20-22 ; 2 Corinthians 5:5 ; Ephesians 1:13 Ephesians 1:14 ; Romans 8:16 ) and makes me sincerely willing and ready, henceforth, to live unto him. ( Romans 8:14 ; 1 John 3:3 )

Q2: How many things are necessary for thee to know, that thou, enjoying this comfort, mayest live and die happily?
Three; ( Matthew 11:28-30 ; Luke 24:46-48 ; 1 Corinthians 6:11 ; Titus 3:3-7 ) the first, how great my sins and miseries are; ( John 9:41 ; John 15:22 ) the second, how I may be delivered from all my sins and miseries; ( John 17:3 ; Acts 4:12 ; Acts 10:43 ) the third, how I shall express my gratitude to God for such deliverance. ( Ephesians 5:8-11 ; 1pet 2:9 1pet 2:10 ; rom 6:1 rom 6:2 rom 6:12 rom 6:13 )

Q3: Whence knowest thou thy misery?
Out of the law of God. ( Romans 3:20 )

Q4: What does the law of God require of us?
Christ teaches us that briefly, Matt. 22:37-40, "Thou shalt love the Lord thy God with all thy heart, with all thy soul, and with all thy mind, and with all thy strength. This is the first and the great commandment; and the second is like unto it, Thou shalt love thy neighbour as thyself. On these two commandments hang all the law and the prophets." ( Deuteronomy 6:5 ; Leviticus 19:18 ; Mark 12:30 ; Luke 10:27 )