If you read your Bible you will find so many references to purgatory. The word isn’t there, but neither is the word “Trinity” and I’m sure you believe in the Trinity, don’t you?
The concept of purgatory came from the time before Christs resurrection and before souls were taken directly to heaven. Christ descended into that place with the keys to release them and take them to heaven. That place is no longer needed because of Christs sacrifice.