Human nature cannot fear and trust in God...

All of these things are the reason why we made mention of concupiscense in our description of original sin, and why we deny to human nature the ability to fear and trust in God.  We wanted to show that original sin contains these diseases: ignorance of God, not having fear and trust in God, the inability to love God. These are the chief faults of human nature because they conflict with the First Table of the Ten Commandments.
~BOC, AP, II(I), 14

With God's grace, misery can heighten longing for the Lord's Supper and its gifts...

With God's grace, you may feel your misery more and become hungrier for the Sacrament [the Lord's Supper], especially since the devil doubles his force against you. He lies in wait for you without resting so that he can seize and destroy you, soul and body. You are not safe from him for one hour. How soon he can have you brought suddenly into misery and distress when you least expect it!
~BOC, LC, V, 84

Faith relies not on our contrition, love, or other virtues...

In the same way, also, in justification before God, faith relies neither on contrition nor on love or other virtues. Faith relies on Christ alone and on His complete obedience by which He has fulfilled the Law for us. This obedience is credited to believers for righteousness.
~BOC, FSD, III, 30

We receive the mercy promised in Him by faith...

It is certain that sins are forgiven for the sake of Christ as our Atoning Sacrifice, "whom God put forward as a propitiation" (Romans 3:25).  Furthermore, Paul adds, "by faith." Therefore, this atonement benefits us in this way: We receive the mercy promised in Him by faith and set it against God's wrath and judgement.
~BOC, AP, IV (II), 82

The natural person does not accept the things of God...

It [human will] has no power, without the Holy Spirit, to work the righteousness of God, that is, spiritual righteousness. For the "natural person does not accept the things of the Spirit of God" (I Cor. 2:14). This righteousness is worked in the heart when the Holy Spirit is received through the Word.
~BOC, AC, XVIII, 1-3

It is far higher to honor than to love...

He does not simply command us to love our parents, but to honor them.  Regarding our brothers, sisters, and neighbors in general, He commands nothing more than that we love them.  In this way He separates and distinguishes father and mother from all persons upon earth and places them at His side.  For it is a far higher thing to honor someone than to love someone, because honor includes not only love, but also modesty, humility, and submission to a majesty hidden in them.
~BOC, LC, I, 105-106

Holy Spirit begins and daily increases holiness...

You see, all this is the Holy Spirit's office and work.  He begins and daily increases holiness upon earth through these two things:  the Christian Church and the forgiveness of sin.  But in our death He will accomplish it altogether in an instant and will forever preserve us therein by the last two parts [of the Creed].
~BOC, LC, II, 59