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.
The Heidelberg Catechism: Lord's Day 18
46. Question: What do you confess when you say, He ascended into heaven?
Answer: That Christ, before the eyes of His disciples, was taken up from the earth into heaven, and that He is there for our benefit until He comes again to judge the living and the dead.
 Mark 16:19; Luke 24:50, 51; Acts 1:9-11.  Rom. 8:34; Heb. 4:14; 7:23-25; 9:24.  Matt. 24:30; Acts 1:11.
47. Question: Is Christ, then, not with us until the end of the world, as He has promised us?
Answer: Christ is true man and true God. With respect to His human nature He is no longer on earth, but
with respect to His divinity, majesty, grace, and Spirit He is never absent from us.
 Matt. 28:20.  Matt. 26:11; John 16:28; 17:11; Acts 3:19-21; Heb. 8:4.  Matt. 28:18-20; John 14:16-19; 16:13.
48. Question: But are the two natures in Christ not separated from each other if His human nature is not present wherever His divinity is?
Answer: Not at all, for His divinity has no limits and is present everywhere. So it must follow that His divinity is indeed beyond the human nature which He has taken on and nevertheless is within this human nature and remains personally united with it.
 Jer. 23:23, 24; Acts 7:48, 49.  John 1:14; 3:13; Col. 2:9.
49. Question: How does Christ's ascension into heaven benefit us?
Answer: First, He is our Advocate in heaven before His Father. Second, we have our flesh in heaven as a sure pledge that He, our Head, will also take us, His members, up to Himself. Third, He sends us His Spirit as a
counter-pledge, by whose power we seek the things that are above, where Christ is, seated at the right hand of God, and not the things that are on earth.
 Rom. 8:34; I John 2:1.  John 14:2; 17:24; Eph. 2:4-6.  John 14:16; Acts 2:33; II Cor. 1:21, 22; 5:5.  Col. 3:1-4.