He insisted that, since forgiveness was God's alone to grant, those who claimed that indulgences absolved buyers from all punishments and granted them salvation were in error. Christians, he said, must not slacken in following Christ on account of such false assurances.
Who did Martin Luther say was the lone granter of forgiveness? What were these indulgences supposed to grant the giver? What did giving money to the church absolve the giver from? What did Luther call these donations? Who did Luther say that Christians must not slacken in following?