Galatians 2:20 ‘I have been crucified with Christ; it is no longer I who live, but Christ lives in me; and the life which I now live in the flesh I live by faith in the Son of God, who loved me and gave Himself for me.’
There could be no more horrendous death than that brought about by crucifixion. *Googling on the Internet reveals there were multiple methods of crucifixion; all of them bringing excruciating agony to the recipients, and eventually death. The Romans would often flog their victims prior to crucifying them (Matthew 27:26). The condemned person would be made to carry a crossbeam to the place of crucifixion. After being stripped naked they would be nailed though the wrists to the crossbeam which was then fixed to a vertical support. Their feet would be nailed either side of the upright with large iron nails.
The truth is, no one really knows what form of crucifixion Jesus underwent, but Scripture tells us none of His bones were broken (John 19:36), and to ensure He was dead before being taken down from the cross, one of the soldiers thrust a spear into the Lord’s side (John 19:34). He was well-and-truly dead! Joseph of Arimathea claimed His body from Pilate and laid Him in a new tomb, before sealing it with a large stone (Mark 15:42-46; John 19:35-42).
We know that the Scriptures describe His resurrection from the dead (Matthew 28:1-10; Luke 24:33-43; John 20) and His ascension into heaven (Luke 24:50, 51). From there, according to Jesus’ promise (John 14:26), His Father sent the Holy Spirit at Pentecost (Acts 1:4-8; 2:1-4) for the formation of His church (Acts 2:41). And through the power of the Holy Spirit (1 Thessalonians 1:5), people were, and are, made alive so as to be able to live sanctified lives to the **glory of God.
The scriptural writings of Paul the Apostle explain how believers metaphorically die with Christ in His crucifixion and are raised with Him to life in heaven with the Father. Having died they are no longer subject to the Mosaic law, and they are to reckon themselves dead to sin (Romans 6:8). They have power in the Spirit (Romans 15: 13, 19; 1 Corinthians 2:4; Acts 1:8) to overcome sin. Using baptism as a metaphor, Paul explained that having died with Christ, believers are raised to life in Him. In their resurrection they live lives to God (Romans 6:10; 12:1), as does Jesus, and they are able to ‘walk in newness of life (Romans 6:4; Galatians 5:24, 25).’
In addition to being dead to the law and to sin (Romans 6:14), their bodies are no longer subject to corruption (Romans 6:9), because they will be raised to life with new bodies like the body of Jesus (1 John 3:2).
Crucifixion for Christ was agonisingly horrendous – beyond our comprehension. He bore the sins of the world (1 Peter 2:23, 24), and suffered for those He saves. In exchange for their initial rebellion (Romans 3:23) He gives to them His love and bestows eternal life to them (John 11:25). In response to His love, they love Him (1 John 4:19), and they owe him their all (1 Corinthians 6:19).
Christians in return for Jesus’ life-giving sacrifice, bear their own cross (Mark 10:21) and serve Him daily, while looking to His coming again and their eternal redemption (Matthew 24:27-31).
* Crucifixion
https://en.wikipedia.org/wiki/Crucifixion#Cross_shape
** The Glory of God
The Biblical Way 