'Purification' in the Bible

And when the days for their purification according to the law of Moses were completed, they brought Him up to Jerusalem to present Him to the Lord

Now there were six stone waterpots set there for the Jewish custom of purification, containing twenty or thirty gallons each.

Therefore there arose a discussion on the part of John’s disciples with a Jew about purification.

Then Paul took the men, and the next day, purifying himself along with them, went into the temple giving notice of the completion of the days of purification, until the sacrifice was offered for each one of them.

And He is the radiance of His glory and the exact representation of His nature, and upholds all things by the word of His power. When He had made purification of sins, He sat down at the right hand of the Majesty on high,

For he who lacks these qualities is blind or short-sighted, having forgotten his purification from his former sins.