'Consecrate' in the Bible

"Now this is what you are to do for them to consecrate them so that they may minister as my priests. Take a young bull and two rams without blemish;

and wrap the sashes around Aaron and his sons and put headbands on them, and so the ministry of priesthood will belong to them by a perpetual ordinance. Thus you are to consecrate Aaron and his sons.

They are to eat those things by which atonement was made to consecrate and to set them apart, but no one else may eat them, for they are holy.

"Thus you are to do for Aaron and for his sons, according to all that I have commanded you; you are to consecrate them for seven days.