B. Coming of the Holy SpiritExplanation:
When Jesus Christ resurrected, his disciples were in disarray until Jesus Christ showed himself and his scars (at his hands) to his disciples. When it was about time for Jesus Christ to return to Heaven, to prepare for his return on earth, He promised the Disciples that he would send a Helper. This means a relationship with God through the Holy Spirit is like a foretaste of Heaven. Here are some related verses:
John 14:16 ESV
And I will ask the Father, and he will give you another Helper(The Holy Spirit), to be with you forever.
John 16:7 ESV
Nevertheless, I tell you the truth: it is to your advantage that I go away, for If I do not go away, the Helper will not come to you. But if I go, I will send him to you.
The Kingdom of God is of the Spirit. That is why Christians have to be born again in the Spirit so that they can have an intimate connection with God - Through the Holy Spirit sent by the Christian Messiah Jesus Christ. As written in:
because through Christ Jesus the law of the Spirit who gives life has set you free from the law of sin and death. For what the law was powerless to do because it was weakened by the flesh, God did by sending his own Son in the likeness of sinful flesh to be a sin offering. And so he condemned sin in the flesh, in order that the righteous requirement of the law might be fully met in us, who do not live according to the flesh but according to the Spirit. Those who live according to the flesh have their minds set on what the flesh desires, but those who live in accordance with the spirit have their mindset on what the Spirit desires. The mind governed by the flesh is death, but the mind governed by the spirit is life and peace.
Related Topic - What is the Holy Trinity?
which of the following ideas gives us the foretaste of the kingdom of god?