How do we know God's promises of cleansing are true?

The assurance of God's promises, as found in Ezekiel 36:25, rests on His unchanging nature and sovereignty. When God declares, 'I will cleanse you,' it is not merely a hope or wish but a definitive promise backed by His authority and power. The certainty of this promise is anchored in the character of God Himself, who is faithful to all His word.

Furthermore, the effectiveness of this cleansing stems from the sacrificial work of Christ, whose blood is the 'clean water' mentioned in the verse. The scripture reassures that those who trust in God will not only experience His cleansing but will be cleansed from all their impurities. This comprehensive nature of the promise highlights that no sin or idolatry is beyond the reach of His redemptive power. Therefore, believers can have unwavering confidence in these promises, knowing they are grounded in the faithful, immutable character of God and the finished work of Christ on the cross.