Revelation 22:14

Blessed are they that do his commandments.

The Revision reads, "That wash their robes." This is probably the reading of the better Greek manuscripts. The two renderings are only different ways of saying the same things. To wash the robes, is to cleanse them,. symbol of being cleansed from sin. We are cleansed from sin by obedience to Christ. The sinless, those whose robes are washed, they who live in obedience to Christ, have the right, guaranteed by the covenant of Christ, to the tree of life. In Christ they have life.

May enter in through the gates into the city. These cleansed, obedient saints, have the right to pass through the gate into the New Jerusalem. Verse 15 shows what classes are forbidden to pass the gates, and verse 14 shows who can enter. It is they who keep Christ's commandments.