The Heidelberg Catechism: Lord's Day 52
127. Question: What is the sixth petition?
Answer: And lead us not into temptation, but deliver us from the evil one. That is: In ourselves we are so weak that we cannot stand even for a moment. Moreover, our sworn enemies-- the devil, the world, and our own flesh-- do not cease to attack us. Wilt Thou, therefore, uphold and strengthen us by the power of Thy Holy Spirit, so that in this spiritual war we may not go down to defeat, but always firmly resist our enemies, until we finally obtain the complete victory.
 Ps. 103:14-16; John 15:1-5.  II Cor. 11:14; Eph. 6:10-13; I Pet. 5:8.  John 15:18-21.  Rom. 7:23; Gal. 5:17.  Matt. 10:19, 20; 26:41; Mark 13:33; Rom. 5:3-5.  I Cor. 10:13; I Thess. 3:13; 5:23.
128. Question: How do you conclude your prayer?
Answer: For Thine is the kingdom, and the power, and the glory, for ever. That is: All this we ask of Thee because, as our King, having power over all things, Thou art both willing and able to give us all that is good, and because not we but Thy holy Name should so receive all glory for ever.
 Rom. 10:11-13; II Pet 2:9.  Ps. 115:1; Jer. 33:8, 9; John 14:13.
129. Question: What does the word Amen mean?
Answer: Amen means: It is true and certain. For God has much more certainly heard my prayer than I feel in my heart that I desire this of Him.
 Is. 65:24; II Cor. 1:20; II Tim. 2:13.
The Heidelberg Catechism: Lord's Day 16
40. Question: Why was it necessary for Christ to humble Himself even unto
Answer: Because of the justice and truth of God satisfaction for our sins could be made in no other way than by the death of the Son of God.
 Gen. 2:17.  Rom. 8:3; Phil. 2:8; Heb. 2:9, 14, 15.
41. Question: Why was he buried?
Answer: His burial testified that He had really died.
 Is. 53:9; John 19:38-42; Acts 13:29; I Cor. 15:3,4.
42. Question: Since Christ has died for us, why do we still have to die?
Answer: Our death is not a payment for our sins, but it puts an end to sin and is an entrance into eternal life.
 John 5:24; Phil. 1:21-23; I Thess. 5:9, 10.
43. Question: What further benefit do we receive from Christ's sacrifice and death on the cross?
Answer: Through Christ's death our old nature is crucified, put to death, and buried with Him, so that the evil desires of the flesh may no longer reign in us, but that we may offer ourselves to Him as a sacrifice of thankfulness.
 Rom. 6:5-11; Col. 2:11, 12.  Rom. 6:12-14.  Rom. 12:1; Eph. 5:1, 2.
44. Question: Why is there added: He descended into hell?
Answer: In my greatest sorrows and temptations I may be assured and comforted that my Lord Jesus Christ, by His unspeakable anguish, pain, terror, and agony, which He endured throughout all His sufferings but especially on the cross, has delivered me from the anguish and torment of hell.
 Ps. 18:5, 6; 116:3; Matt. 26:36-46; 27:45, 46; Heb. 5:7-10.  Is. 53.
The Heidelberg Catechism: Lord's Day 5
12. Question: Since, according to God's righteous judgment we deserve temporal and eternal punishment, how can we escape this punishment and be again received into favor?
Answer: God demands that His justice be satisfied. Therefore full payment must be made either by ourselves or by another.
 Ex. 20:5; 23:7; Rom. 2:1-11.  Is. 53:11; Rom. 8:3, 4.
13. Question: Can we ourselves make this payment?
Answer: Certainly not. On the contrary, we daily increase our debt.
 Ps. 130:3; Matt. 6:12; Rom. 2:4, 5.
14. Question: Can any mere creature pay for us?
Answer: No. In the first place, God will not punish another creature for the sin which man has committed. Furthermore, no mere creature can sustain the burden of God's eternal wrath against sin and deliver others from
 Ezek. 18:4, 20; Heb. 2:14-18.  Ps. 130:3; Nah. 1:6.
15. Question: What kind of mediator and deliverer must we seek?
Answer: One who is a true and righteous man, and yet more powerful than all creatures; that is, one who is at the same time true God.
 I Cor. 15:21; Heb. 2:17.  Is. 53:9; II Cor. 5:21; Heb. 7:26.  Is. 7:14; 9:6; Jer. 23:6; John 1:1; Rom. 8:3, 4.