ulfil This Precept of the
Love of God?

Objection 1: It would seem that in this life it is possible to fulfil
this precept of the love of God. For according to Jerome [*Pelagius,
Exposit. Cath. Fid.] "accursed is he who says that Cod has commanded
anything impossible." But God gave this commandment, as is clear from
Deut. 6:5. Therefore it is possible to fulfil this precept in this
life.

Obj. 2: Further, whoever does not fulfil a precept sins mortally,
since according to Ambrose (De Parad. viii) sin is nothing else than
"a transgression of the Divine Law, and disobedience of the heavenly
commandments." If therefore this precept cannot be fulfilled by
wayfarers, it follows that in this life no man can be without mortal
sin, and this is against the saying of the Apostle (1 Cor. 1:8):
"(Who also) will confirm you unto the end without crime," and (1 Tim.
3:10): "Let them minister, having no crime."

Obj. 3: Further, precepts are given in order to direct man in the way
of salvation, according to Ps. 18:9: "The commandment of the Lord is
lightsome, enlightening the eyes." Now it is useless to direct anyone
to what is impossible. Therefore it is not impossible to fulfill this
precept in this life.

_On the contrary,_ Augustine says (De Perfect. Justit. viii): "In the
fulness of heavenly charity this precept will be fulfilled: Thou
shalt love the Lord thy God," etc. For as long as any carnal
concupiscence remains, that can be restrained by continence, man
cannot love God with all his heart.

_I answer that,_ A precept can be fulfilled in two ways; perfectly,
and imperfectly. A precept is fulfilled perfectly, when the end
intended by the author of the precept is reached; yet it is
fulfilled, imperfectly however, when although the end intended by its
author is not reached, nevertheless the order to that end is not
departed from. Thus if the commander of an army order his soldiers to
fight, his command will be perfectly obeyed by those who fight and
conquer the foe, which is the commander's intention; yet it is
fulfilled, albeit imperfectly, by those who fight without gaining the
victory, provided they do nothing contrary to military discipline.
Now God intends by this precept that man should be entirely united to
Him, and this will be realized in heaven, when God will be "all in
all," according to 1 Cor. 15:28. Hence this precept will be observed
fully and perfectly in heaven; yet it is fulfilled, though
imperfectly, on