Another good question was posed to me that I thought was worth sharing.
Q: What does it mean in the Bible to consecrate yourself?
A: That is a good question because usually God does the consecrating. To consecrate means to set apart for God and to be made holy. Other words used in the Bible include sanctify or dedicate. Consecration generally was done by God, through a prophet, for the purpose of setting apart a person for spiritual work, such as priests and other prophets. Note that this is done only in the Old Testament. New Testament references only talk of consecration regarding Jesus Christ (Hebrews 7:28 and 10:20).
Consecration of general people took place to prepare them for God’s instruction (Exodus 19:10 in preparation for receiving the law; 20:8 for the Sabbath to be the holy day; 28:41 for the priests in preparation for a life of service; 32:29 for the Levites in preparation for dealing with the sin of the nation; 2 Chronicles 29:31 all people in preparation for worship through sacrifices; Ezekiel 43:26 to cleanse the altar for sole use of worship to God)
The process of sanctification or consecration involved the cleansing of the heart through confession and repentance, the cleansing of the body through washing in clean, fresh rainwater, and the cleansing of the clothes through washing.
In the New Testament, we who believe have been set apart (made holy) by God and present ourselves through cleansing of the heart by confession and repentance, and submission of our complete being (mind, soul, body) as an act of worship to God. Sacrifice of animals was fulfilled by the sacrifice of the Lamb of God (Jesus Christ) and now is replaced by the sacrifice of our will and being, as stated in Romans 12:1-2.