God is still carrying out a long work of salvation to save humanity.
God himself came to this earth to save us, the sinners of heaven, and did not stop his steps of salvation to save us even in the midst of extreme suffering.
If there had not been this process of God's sacrifice, no one in this world would have known the news of salvation, and our lives would have ended in eternal death.
God was most pleased when one sinner repented, even though we had committed the greatest sin in heaven.

Luke 15:7
I tell you that in the same way there will be more rejoicing in heaven over one sinner who repents than over ninety-nine righteous persons who do not need to repent.

If we are children who have received forgiveness of sins and the blessing of eternal life through God's great love and sacrifice, we must know how to repay that grace.
2000 years ago, what Jesus did when he came to this earth in the flesh to save humanity, the sinners of heaven, was preaching.
And in gratitude for Jesus' grace of salvation, the disciples and apostles of the early church devoted their entire lives to spreading the gospel.
Likewise, in this last age of the Holy Spirit, the Second Coming Christ Ahnsahnghong and Heavenly Mother, who came as the Holy Spirit and the Bride, are carrying out the final work of salvation by spreading the gospel of the new covenant established by Jesus.
The members of the Church of God, who have received forgiveness of sins and the blessing of eternal life through the truth of the new covenant restored by Heavenly Father Ahnsahnghong and Heavenly Mother, strive to repay the great grace of God Elohim by spreading the gospel of the new covenant, which is the work that pleases God the most.

1 Thessalonians 2:3–4
For the appeal we make does not spring from error or impure motives. . . we speak as men approved by God to be entrusted with the gospel. We are not trying to please men but God, who tests our hearts.