they shall
Leviticus 8:34
as he hath done on this day, Jehovah hath commanded to do, to make atonement for you;
Read Whole Chapter
consecrate themselves
Exodus 29:24
'And thou hast set the whole on the hands of Aaron, and on the hands of his sons, and hast waved them -- a wave-offering before Jehovah;
Read Whole Chapter
Exodus 32:29
and Moses saith, 'Consecrate your hand to-day to Jehovah, for a man [is] against his son, and against his brother, so as to bring on you to-day a blessing.'
Read Whole Chapter