To consecrate is to set apart persons, places, or things exclusively for God's use and purposes. In the OT, consecration governed the priesthood (Exod 28:41), the tabernacle and its vessels (Exod 40:9–11), and the firstborn of both humans and animals (Exod 13:2). Consecration always involved a transfer of ownership — the consecrated thing no longer belonged to the common sphere but to God. In the NT, the concept expands: all believers are a "royal priesthood" (1 Pet 2:9), set apart for God's service. Paul applies this to the body itself: "Present your bodies as a living sacrifice, holy and acceptable to God" (Rom 12:1). Christ is the ultimate consecrated offering — the one who "sanctified himself" so that believers might be consecrated in truth (John 17:19). Consecration is not merely a ceremony but a posture of complete surrender.
CONSECRATE, v.t. [Latin consecro; con and sacro, to make sacred.] To make or declare to be sacred, by certain ceremonies or rites; to appropriate to sacred uses; to set apart, dedicate, or devote, to the service and worship of God. "Moses took the anointing oil, and anointed the tabernacle and all that was therein, and consecrated them" (Lev 8:10).
Consecration has been hollowed out in two directions: empty ritual and therapeutic self-dedication. In liturgical traditions, it has become a formulaic ceremony with diminishing understanding of what transfer of ownership it implies. In evangelical culture, "consecration" language is used for motivational self-improvement — consecrating your career, your finances, your gym routine — without the costly surrender the word demands. True consecration means you no longer control what has been consecrated. The businessman who "consecrates his company to God" but still runs it entirely for personal profit has performed a ceremony, not a consecration.
• Romans 12:1 — "Present your bodies as a living sacrifice, holy and acceptable to God, which is your spiritual worship."
• Exodus 28:41 — "You shall anoint them and ordain [consecrate] them and consecrate them, that they may serve me as priests."
• John 17:19 — "For their sake I consecrate myself, that they also may be sanctified in truth."
• 1 Peter 2:9 — "You are a chosen race, a royal priesthood, a holy nation, a people for his own possession."
• Exodus 13:2 — "Consecrate to me all the firstborn… it is mine."