Repentance is a constant way of life. The Greek word metanoia means not only a change of mind but also a change of heart or direction. It is a 180 degree turn away from sin and towards God. Every time we sin we must repent. Notice Jesus’ messages to the 7 churches in Revalation.
“'I know your deeds and your toil and perseverance, and that you cannot tolerate evil men, and you put to the test those who call themselves apostles, and they are not, and you found them to be false; and you have perseverance and have endured for My name's sake, and have not grown weary. But I have this against you, that you have left your first love. Therefore remember from where you have fallen, and repent and do the deeds you did at first; or else I am coming to you and will remove your lampstand out of its place-unless you repent.”
Revelation 2:2-5 NASB
“'I know where you dwell, where Satan's throne is; and you hold fast My name, and did not deny My faith even in the days of Antipas, My witness, My faithful one, who was killed among you, where Satan dwells. But I have a few things against you, because you have there some who hold the teaching of Balaam, who kept teaching Balak to put a stumbling block before the sons of Israel, to eat things sacrificed to idols and to commit acts of immorality. So you also have some who in the same way hold the teaching of the Nicolaitans. Therefore repent; or else I am coming to you quickly, and I will make war against them with the sword of My mouth.”
Revelation 2:13-16 NASB