ISB ~ James 5 v14

anointing:Oil was used as a medicinal agent in Jewish antiquity (Is 1:6; Lk 10:34). However, James envisions something more than a simple healing rite: the invocation of the Lord’s name, which results in forgiveness (Jas 5:15), makes the anointing a truly sacred and sacramental action. Its institution goes back to Jesus and is hinted at in Mk 6:13.

•The Council of Trent (1551) interprets this text as a reference to the Sacrament of the Anointing of the Sick, which is administered by priests (presbyters) to the aged and seriously ill. Its purpose is to cleanse them of sin, to strengthen them through the spiritual struggles that come with illness, and, in some cases, to prepare them for death. Restoration to health can also result if God wills it (CCC 1510-20).