John said, "Repent ye: for the kingdom of heaven is at hand." Matthew 3:4. Jesus repeated that phrase saying, "Repent, for the kingdom of heaven is at hand." Matthew 4:18.
After the The Christian church was formed and well established Christ synmbolized His church in her forthcoming history by seven of the churhces in Asia Minor and said:
"Unto the angel of the churhc of Epheus: Repent." Revelation 2:1-5
"To the angel of the church of Pergamos: Repent." Revelation 2:12, 16
"Unto the angel of the church in Sardis: Repent." Revelation 3:1, 3
"Unto the angel of the church of the Laodiceans: Repent." Revelation 3:14, 19
The Christian church was formed by a call to repentance. After it was formed during four of the seven periods or conditions symbolized by the seven churches, God calls upon her again to repent.
This repentance is connected with the cleansing of the sanctuary spoken of in Daniel 8:14, the three angel's messages of Revelation 14, and what is known in Seventh-day Adventism as "the 1888 message." Hence,