Christians must not take advantage of God’s forgiveness — selfishly repeating sin after sin — because God’s wrath for those who refuse to change their ways is just as great as his mercy, Pope Francis said in a morning homily.

“Do not say, ‘God’s compassion is great, he will forgive my many sins’ and then I just keep going on, doing what I want,” he said at morning Mass in the chapel of his residence, the Domus Sanctae Marthae.

Pope Francis suggested Catholics spend five minutes at the end of each day examining their conscience, pinpointing their failings and working to conform their life ever more closely to Christ’s.