they shall
Leviticus 8:34
"The LORD has commanded to do as has been done this day, to make atonement on your behalf.
consecrate themselves
Exodus 29:24
and you shall put all these in the hands of Aaron and in the hands of his sons, and shall wave them as a wave offering before the LORD.
Exodus 32:29
Then Moses said, "Dedicate yourselves today to the LORD-- for every man has been against his son and against his brother-- in order that He may bestow a blessing upon you today."