Exodus 28  The priests garments are described here.  Every part of Aaron's garments had purpose and meaning.  The names of the 12 tribes were inscribed on stones.. as a memorial.  12 different stones were on the breastplate, again a memorial to the 12 tribes.  On the headpiece was a gold piece inscribed with the words, " Holy to the Lord".   There were bells attached on the  bottom of the robe so he could be heard coming and going into the Holy place.  There were linen breeches to keep everything covered properly.

Aaron and his 4 sons were the first official priests.  Set apart by God's decree.  Set apart by the garments they would wear to serve.

We are told in Peter's letter that we are to be "like the Holy One who called you, be holy yourselves also in all your behavior; because it is written 'You shall be holy, for I am holy.' "  ( I Peter 1:15-16)
We are to be a nation of priests. Like Aaron, we are to be "Holy to the Lord".    We can only do this through Christ.  And it is only when we are living in this state of holiness, that we can carry others into His Presence.  This is our purpose.

Romans 12:1 " Therefore I urge you, brethren, by the mercies of God,  to present your bodies a living and holy sacrifice, acceptable to God, which is your spiritual service of worship."  ( working on memorizing this chapter)... but think about this.  Worship,  which Aaron was appointed to, is what we are called to, also.  Aaron was set apart and presented himself before the Lord,  in an acceptable garment.  We are to present ourselves... our whole selves.. in an acceptable garment... by the mercies of God.  Only through the "garment" of Jesus Christ our Savior, can we do this.  And this is what He calls us to do - present ourselves to Him,  alive in Christ and holy through the cleansing of His blood shed on the cross for us.  

Father in heaven,  lead us into your holiness.  Cleanse us from all unrighteousness.  We are yours and yours alone.  We give ourselves to you.  Yielding our whole body, soul, spirit, and mind to your service.  To the glory of Your Name.  Amen