Actually - that is FALSE.
The Bible absolutely supports the teaching of Purgatory (Final Purification).
In 2 Macc. 42-46, we see that Judas Maccabeus prays for the men of his army, killed in battle. Verse 44 says, “… for if he were not expecting the fallen to rise again, it would have been useless and foolish to pray for them in death.”
Matt. 5:25-26 tells us that unless we have settled our matters, we will be “handed over to the prison guard and will not be released until we have paid the last penny.”
We are told in 1 Cor. 3:12-15 that the day (judgment) will disclose the foundation that a person builds upon and how it will be revealed: “If the work stands that someone built upon the foundation, that person will receive a wage. But if someone's work is burned up, that one will suffer loss; the person will be saved, but only as through fire.”
Additionally, Matt. 12:32 states, “whoever speaks against the Holy Spirit will not be forgiven, either in this age or in the age to come”, which indicates that there is purification after death for some. Matt. 18:32-35 and Luke 12:58-59 are additional verses that support this doctrine.
All of these verses point to the fact that those in Purgatory will suffer loss but will eventually be released (purified, purged from iniquity, saved). Purgatory is for the believer who dies in God’s favor (without the stain of mortal sin) but is in need of final purification before entering heaven.