Sanctify Me!
Jesus asks explicitly to have His brethren sanctified. This sanctification is similar to holiness, but is more involved in service than personal distance from all that defiles alone.
Introduction
Truth
Jesus’ Prayer
A definitive use of the term occurs in Num 16:38 [H 17:3]. The censers of the Korahites were regarded as holy because they had been devoted to the Lord. They were thus regarded as having entered the sphere of the sacred by virtue of cultic ritual (v. 17 [H 16:18]) and were accorded a special place in the sanctuary. The devotion of the censers seems to have created a condition of inviolable holiness that could not allow for their being treated in a common way. It seems best to see the root qdš as serving to delineate the sphere of the “holy.”
In the Qal the verb qādaš is used most frequently to describe the state of consecration effected by Levitical ritual. In Ex 29:21, 37; 30:29 certain articles used in the Levitical service were consecrated to God and were thus recognized as belonging to the realm of the sacred. Transmission of the state of holiness to anything that touched a person or object so consecrated (Ex 29:37; 30:29; Lev 6:18 [H 11], 27 [H 20]) does not necessarily imply that a transferable divine energy exists in the “holy.” Rather, it seems that the person or object entered the state of holiness in the sense of becoming subject to cultic restrictions, as were other holy persons or objects, in order to avoid diffusion of the sacred and the profane (cf. the state of holiness of the priesthood [Lev 21:1–8] and the strictures applied to a garment accidentally sprinkled with the blood of the sin offering [Lev 6:27, [H 20]).
But holiness is not merely a human achievement; it is to be understood as an act of God in setting apart a people to be like God. Therefore Jesus’ petition is for the Father to sanctify the disciples just as he earlier sanctified and sent Jesus (cf. John 10:36). For the disciples to be holy necessitated the work of God.