(Some manuscripts read: 'If your brother sins, go and show him his fault...')

If your brother sins against you, go and show him his fault, just between the two of you. If he listens to you, you have won your brother over. (Matthew 18:15)…

Whoever blasphemes against the Father will be forgiven, and whoever blasphemes against the Son will be forgiven, but whoever blasphemes against the Holy Spirit…

So watch yourselves. If your brother sins, rebuke him, and if he repents, forgive him. If he sins against you seven times in a day, and seven times comes back …