Revelation 2:5; Revelation 2:22; Revelation 3:3

5 Remember therefore from whence thou art fallen , and repent , and do the first works; or else I will come unto thee quickly, and will remove thy candlestick out of his place, except thou repent .
22 Behold , I will cast her into a bed, and them that commit adultery with her into great tribulation, except they repent of their deeds.
3 Remember therefore how thou hast received and heard , and hold fast , and repent . If therefore thou shalt not watch , I will come on thee as a thief, and thou shalt not know what hour I will come upon thee.