Where does the doctrine of Purgatory come from?

The argument against Purgatory usually goes, “It’s not in the Bible, you Catholics invented it”. So is Purgatory in the Bible? Well, the word “purgatory” is not, no. Neither is “Trinity” or “Hypostatic Union”, yet Christians accept those. Perhaps the question should be phrased, is the concept of Purgatory found in the Bible?Yes, it is! But first, let’s begin with the reasonableness and necessity of a final cleansing before those who die in God’s favour can enter Heaven.Scripture says, “Nothing i