Whether olive oil is a suitable matter for this sacrament?
Objection 1: It would seem that olive oil is not a suitable matter for this sacrament. For this sacrament is ordained immediately to the state of incorruption. Now incorruption is signified by balsam which is contained in chrism. Therefore chrism would be a more suitable matter for this sacrament.
Objection 2: Further, this sacrament is a spiritual healing. Now spiritual healing is signified by the use of wine, as may be gathered from the parable of the wounded man (Lk. 10:34). Therefore wine also would be more suitable a matter for this sacrament.
Objection 3: Further, where there is the greater danger, the remedy should be a common one. But olive oil is not a common remedy, since the olive is not found in every country. Therefore, since this sacrament is given to the dying, who are in the greatest danger, it seems that olive oil is not a suitable matter.
On the contrary, oil is appointed (James 5:14) as the matter of this sacrament. Now, properly speaking, oil is none but olive oil. Therefore this is the matter of this sacrament.
Further, spiritual healing is signified by anointing with oil, as is evident from Is. 1:6 where we read: " . . . swelling sores: they are not . . . dressed nor fomented with oil." Therefore the suitable matter for this sacrament is oil.
I answer that, The spiritual healing, which is given at the end of life, ought to be complete, since there is no other to follow; it ought also to be gentle, lest hope, of which the dying stand in utmost need, be shattered rather than fostered. Now oil has a softening effect, it penetrates to the very heart of a thing, and spreads over it. Hence, in both the foregoing respects, it is a suitable matter for this sacrament. And since oil is, above all, the name of the liquid extract of olives, for other liquids are only called oil from their likeness to it, it follows that olive oil is the matter which should be employed in this sacrament.
Reply to Objection 1: The incorruption of glory is something not contained in this sacrament: and there is no need for the matter to signify such a thing. Hence it is not necessary for balsam to be included in the matter of this sacrament, because on account of its fragrance it is indicative of a good name, which is no longer necessary, for its own sake, to those who are dying; they need only a clear conscience which is signified by oil.
Reply to Objection 2: Wine heals by its roughness, oil by its softness, wherefore healing with wine pertains to Penance rather than to this sacrament.
Reply to Objection 3: Though olive oil is not produced everywhere, yet it can easily be transported from one place to another. Moreover this sacrament is not so necessary that the dying cannot obtain salvation without it.
Supp. · Q. 29, Art. 5: Whether the oil ought to be consecrated?
Whether the oil ought to be consecrated?
Objection 1: It would seem that the oil need not be consecrated. Because there is a sanctification in the use of this sacrament, through the form of words. Therefore another sanctification is superfluous if it be applied to the matter.
Objection 2: Further, the efficacy and signification of the sacraments are in their very matter. But the signification of the effect of this sacrament, is suitable to oil on account of its natural properties, and the efficacy thereof is due to the Divine institution. Therefore its matter does not need to be sanctified.
Objection 3: Further, Baptism is a more perfect sacrament than Extreme Unction. But, so far as the essentials of the sacrament are concerned, the baptismal matter needs no sanctification. Neither therefore does the matter of Extreme Unction need to be sanctified.
On the contrary, In all other anointings the matter is previously consecrated. Therefore since this sacrament is an anointing, it requires consecrated matter.
I answer that, Some hold that mere oil is the matter of this sacrament, and that the sacrament itself is perfected in the consecration of the oil by the bishop. But this is clearly false since we proved when treating of the Eucharist that that sacrament alone consists in the consecration of the matter (Q 2, A 1, ad 2).
We must therefore say that this sacrament consists in the anointing itself, just as Baptism consists in the washing, and that the matter of this sacrament is consecrated oil. Three reasons may be assigned why consecrated matter is needed in this sacrament and in certain others. The first is that all sacramental efficacy is derived from Christ: wherefore those sacraments which He Himself used, derived their efficacy from His use of them, even as, by the contact of His flesh, He bestowed the force of regeneration on the waters. But He did not use this sacrament, nor any bodily anointing, wherefore in all anointings a consecrated matter is required. The second reason is that this sacrament confers a plenitude of grace, so as to take away not only sin but also the remnants of sin, and bodily sickness. The third reason is that its effect on the body, viz. bodily health, is not caused by a natural property of the matter. wherefore it has to derive this efficacy from being consecrated.
Reply to Objection 1: The first consecration sanctifies the matter in itself, but the second regards rather the use of the matter considered as actually producing its effect. Hence neither is superfluous, because instruments also receive their efficacy from the craftsman, both when they are made, and when they are used for action.
Reply to Objection 2: The efficacy which the sacrament derives from its institution, is applied to this particular matter when it is consecrated.
The Reply to the Third Objection is gathered from what has been said.