The devoting or setting apart of anything to the worship or service of God. The race of Abraham and the tribe of Levi were thus consecrated (Exodus 13:2,12,15; Numbers 3:12). The Hebrews devoted their fields and cattle, and sometimes the spoils of war, to the Lord (Leviticus 27:28,29). According to the Mosaic law the first-born both of man and beast were consecrated to God.
In the New Testament, Christians are regarded as consecrated to the Lord (1 Peter 2:9).
These dictionary topics are from M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition, published by Thomas Nelson, 1897. Public Domain, copy freely.
Easton, Matthew George. "Entry for 'Consecration'". "Easton's Bible Dictionary".