"I am the LORD who sanctifies you."
Exodus 31:13
To be sanctified means to be cleansed and made holy, set apart for God's special purposes and promises.
It is signified by anointing oil.
David said to the Lord, "You anoint my head with oil"
Psalm 23:5
Isaiah prophesied, "it shall come to pass in that day that [the oppressor's] burden will be taken away from your shoulder, and his yoke from your neck, and the yoke will be destroyed because of the anointing oil"
Isaiah 10:27
The anointing removes the oppressive burden of sickness and destroys the yoke of disease.
James 5:14 said, "Is anyone among you sick?
Let him call for the elders of the church,
and let them pray over him,
anointing him with fresh oil. . ."
The anointing oil is a sign of God's sanctifying and healing presence.
Sanctification is for the entire person, and includes healing for the body.
Paul said, "Now may the God of peace Himself sanctify you completely; and may your whole spirit, soul, and body be preserved blameless at the coming of our Lord Jesus Christ. He who calls you will do it"
1 Thessalonians 5:23,24