Apostasy and Repentance
The accounts of Acacius's life present it as a passage from denial to confession. Brought to deny Christ as a youth after mistreatment and the influence of those around him, he was raised in a Muslim household under an assumed name for some nine years.
His return began when he was expelled from that household and sought his parents in Thessalonica. Directed to Mount Athos, he formally confessed his earlier apostasy to Father Nicholas at the Xenophontos Monastery and was reconciled to the Church through Chrismation before being tonsured a monk.