The Heidelberg Catechism: Lord's Day 46
120. Question: Why has Christ commanded us to address God as Our Father?
Answer: To awaken in us at the very beginning of our prayer that childlike reverence and trust toward God which should be basic to our prayer: God has become our Father through Christ and will much less deny us what we ask of Him in faith than our fathers would refuse us earthly things.
 Matt. 7:9-11; Luke 11:11-13.
121. Question: Why the words "in heaven"?
Answer: These words teach us not to think of God's heavenly majesty as something earthly,  and to expect everything for body and soul from his almighty power.
 Jer. 23:23-24; Acts 17:24-25  Matt. 6:25-34; Rom. 8:31-32
The Heidelberg Catechism: Lord's Day 22
57. Question: What comfort does the resurrection of the body offer you?
Answer: Not only shall my soul after this life immediately be taken up to Christ, my Head, but also this my flesh, raised by the power of Christ, shall be reunited with my soul and made like Christ's glorious body.
 Luke 16:22; 23:43; Phil. 1:21-23.  Job 19:25, 26; I Cor. 15:20, 42-46, 54; Phil. 3:21; I John 3:2.
58. Question: What comfort do you receive from the article about the life everlasting?
Answer: Since I now already feel in my heart the beginning of eternal joy,  I shall after this life possess perfect blessedness, such as no eye has seen, nor ear heard, nor the heart of man conceived-- a blessedness in which to praise God forever.
 John 17:3; Rom. 14:17; II Cor. 5:2, 3.  John 17:24; I Cor. 2:9.
The Heidelberg Catechism: Lord's Day 19
50. Question: Why is it added, ‘And sits at the right hand of God’?
Answer: Christ ascended into heaven to manifest Himself there as Head of His Church, through whom the Father governs all things.
 Eph. 1:20-23; Col. 1:18.  Matt. 28:18; John 5:22, 23.
51. Question: How does the glory of Christ, our Head, benefit us?
Answer: First, by His Holy Spirit He pours out heavenly gifts upon us, His members. Second, by His
power He defends and preserves us against all enemies.
 Acts 2:33; Eph. 4:7-12.  Ps. 2:9; 110:1, 2; John 10:27-30; Rev. 19:11-16.
52. Question: What comfort is it to you that Christ will come to judge the living and the dead?
Answer: In all my sorrow and persecution I lift up my head and eagerly await as judge from heaven the very same person who before has submitted Himself to the judgment of God for my sake, and has removed all the curse from me. He will cast all His and my enemies into everlasting condemnation, but He will take me and all His chosen ones to Himself into heavenly joy and glory.
 Luke 21:28; Rom. 8:22-25; Phil. 3:20,21; Tit. 2:13, 14.  Matt. 25:31-46; I Thess. 4:16, 17; II Thess. 1:6-10.