I found the newsletter on the web and copied/pasted it .  The format isn't what it should be but since I am not really computer literate, here it is in a rather broken form.
If you want to read the whole article rather than wait for bits and pieces, it is from web page lampbroadcast.org.  It comes form the section called periodicals and under the dates of May June 2012.  All of the periodicals are interesting and surprisingly enough :), it is a commentary on the book of Revelation.
 

1) "Wash Thyself" has to do with a cleansing from present defilement. Within the scope of the ministry of priests in the Old Testament, a complete washing of the body occurred at the time one entered into the priesthood, never to be repeated (Ex. 29:4; 40:12-15). Subsequent washings of parts of the body then occurred

at the brazen laver in the courtyard of the tabernacle as the priests ministered between the brazen altar and the Holy Place (Ex. 30:19-21). Their hands and feet became soiled as they carried out their ministry, and the brazen laver had upper and lower basins for washing these soiled parts of the body.

Washings in the Old Testament were thus looked upon in two senses — a washing of

the complete body (a one-time initial cleansing), followed by washings of parts of the body (numerous subsequent cleansings). It was these two types of cleansings which Jesus referred to when speaking to Peter in John 13:8, 10:

"If I wash [Gk.,

nipto, referring to a part of the body (the Septuagint uses this same word in Ex. 30:19, 21)] thee not, thou hast no part with me [note: ‘with me,’ not ‘in me’]…

He that is washed [Gk.,

louo, referring to the entire body (the Septuagint uses this word in Ex. 29:4; 40:12)] needeth not save to wash [nipto] his feet…" (vv. 8b, 10a).

Peter had been washed once (described by the word

louo [his complete body]); now he needed continued washings (described by the word nipto [parts of the body]). And, apart from these continued washings, he could have no part "with" Christ (contextually, the kingdom and positions with Christ therein were in view).

Bringing the typological teachings of the Old Testament and Christ’s statement to Peter over into the lives of Christians today, the matter would be the same.

Christians, part of a New Testament priesthood (I Peter 2:5), received a complete washing (

louo, the entire body) at the time they entered into the priesthood, at the time they were saved. Now, as priests ministering for their Lord, because of defilement through contact with the world, they need continued partial washings (nipto, parts of the body). And, apart from these continued washings, Christians can have no part with Christ in His future kingdom.

All cleansing is accomplished on the basis of Christ’s past and present work in relation to His shed blood.

Christ died at Calvary, shedding His blood, to effect our redemption. Those appropriating the blood have been washed (

louo) and have entered into the priesthood (corresponding in the parallel type to the death of the paschal lambs and the application of the blood in Ex. 12:1ff).

And Christ’s blood is today on the mercy seat of the heavenly tabernacle, with Christ ministering, on the basis of His shed blood, on our behalf, in the Holy of Holies, to effect a continued cleansing (

nipto) for the "kings and priests" (Rev. 1:6; 5:10) which He is about to bring forth.

Thus, the Lord has set apart

a cleansed (louo) people through whom He is accomplishing His plans and purposes. And He has provided a means whereby He can keep those whom He has set apart clean (nipto).

Cleansing through the work of Christ as High Priest though is not something which occurs automatically. Ruth had to act herself. She had to prepare herself for the impending meeting with Boaz, on his threshing floor. And Christians must likewise prepare themselves for an impending meeting with Christ, on His threshing floor.

In Ruth’s case, she washed herself. Today, Christ does the washing, but Christians, as Ruth, must act. It is only as we "confess our sins," judging ourselves (I Cor. 11:31, 32), that Christ effects cleansing on our behalf.

"If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness" (I John 1:9)