Prove it with scriptures from the bible.
For other foundation can no man lay than that is laid, which is Jesus Christ.
Every man’s work shall be made manifest: for the day shall declare it, because it shall be revealed by fire; and the fire shall try every man’s work of what sort it is.
If any man’s work abide which he hath built thereupon, he shall receive a reward.
If any man’s work shall be burned, he shall suffer loss: but he himself shall be saved; (yet so as by fire).
1Cor 3:13-15
16 The Lord give mercy unto the house of Onesiphorus(Who is dead); for he oft refreshed me, and was not ashamed of my chain:
17 But, when he was in Rome, he sought me out very diligently, and found me.
18 The Lord grant unto him that he (may) find mercy of the Lord (in that day): and in how many things he ministered unto me at Ephesus, thou knowest very well. 2Tim 1:16-18
Note: He may not have found mercy(heaven)yet.
Prove what? Purgatory? The term "purgatory" is not found in the Bible; but neither are other such important Christian beliefs such as "Trinity" and "Incarnation." Do you accept those beliefs?
1 Peter Chapter 3:
18For Christ also hath once suffered for sins, the just for the unjust, that he might bring us to God, being put to death in the flesh, but quickened by the Spirit:
19By which also he went and preached unto the spirits in prison;
20Which sometime were disobedient, when once the longsuffering of God waited in the days of Noah, while the ark was a preparing, wherein few, that is, eight souls were saved by water.
Check out some of these threads. The Scripture is included in them.
Beginning Catholic: Catholic Purgatory: What Does It Mean? [Ecumenical]
Explaining Purgatory from a New Testament Perspective [Ecumenical]
PURIFYING THE SOUL ON EARTH IS WORTH 100X WHAT IT TAKES AFTER [Catholic Caucus]
A Brief Catechism for Adults - Lesson 12: Purgatory
The Early Church Fathers on Purgatory - Catholic/Orthodox Caucus
Required for entrance to Purgatory? Personal question for Cathloic Freepers.
(Protestant) Minister Who Had Near-Death Episode Believes In Purgatory
Straight Answers: What Is Purgatory Like?
Do Catholics Believe in Purgatory?
Purgatory, Indulgences, and the Work of Jesus Christ (Discussion)
Prayer to Release the Souls of Purgatory