Use God's name in the service of truth...

Besides this you must also  know how to use God's name rightly.  For when He says, "You shall not take the name of the Lord, your God, in vain," He wants us to understand at the same time that His name is to be used properly.  For His name has been revealed and given to us so that it may be of constant use and profit. So it is natural to conclude that since this commandment forbids using the holy name for falsehood or wickedness, we are, on the other hand, commanded to use His name for truth and for all good, like when someone takes an oath truthfully when it is needed and demanded.  This commandment also applies to right teaching and to calling on His name in trouble or praising and thanking Him in prosperity, and so on.  All of this is summed up and commanded in Psalm 50:15, "Call upon Me in the day of trouble; I will deliver you, and you shall glorify Me." For all this is bringing God's name into the service of truth and using it in a blessed way.  In this way His name is hallowed, as we pray in the Lord's Prayer.
~BOC, LC, I, 63-64

God is as an eternal fountain that gushes forth abundantly nothing but what is good...

We are to trust in God alone and look to Him and expect from Him nothing but good, as from one who gives us body, life, food, drink, nourishment, health, protection, peace, and all necessaries of both temporal and eternal things.  He also preserves us from misfortune.  And if any evil befall us, He deilvers and rescues us.  So it is God alone (as had been said well enough) from whom we receive all good and by whom we are delivered from all evil. ...It is as though He were an eternal fountain that gushes forth abundantly nothing but what is good.  And from that fountain flows forth all that is and is called good.

Even though we experience much good from other people, whatever we receive by God's command or arrangement is all received from God.  For our parents and all rulers and everyone else, with respect to his neighbor, have received from God the command that they should du us all kinds of good.  So we receive these blessings not from them, but through them, from God.  For creatures are only the hands, channels, and means by which God gives all things.  So He gives to the mother breasts and milk to offer to her child, and He gives corn and all kinds of produce from the earth for nourishment.  None of these blessings could be produce by any creature of itself.
~BOC, LC, I, 24-26

The power of God is in His Word...

Now, for this reason alone you ought to gladly read, speak, think, and use these things, even if you have no other profit and fruit from them than driving away the devil and evil thoughts by doing so.  For he cannot hear or endure God's Word.  God's Word is not like some other silly babbling, like the story about Dietrich of Berne, for example.  But as St. Paul says in Romans 1:16, it is "the power of God."  Yes, indeed, it is the power of God that give the devil burning pain and strengthens, comforts, and helps us beyond measure.
~BOC, LC, LP, 11

Justifying faith is the promise, grace, and Christ's merits as the price and atonement...

Whenever we speak of justifying faith, we must keep in mind that these three objects belong together:  the promise, grace, and Christ's merits as the price and atonement.  The promise is received through faith.  Grace excludes our merits and means that the benefit is offered only through mercy.  Christ's merits are the price, because there must be a certain atonement for our sins.  Scripture freely cries out for mercy; the Holy Fathers often say that we are saved by mercy.  Therefore, whenever mercy is mentioned, we must keep in mind that faith, which receives the promise of mercy, is required there.  Again, whenever we speak about faith, we want an object of faith to be understood, namely the promised mercy.  For faith justifies and saves, not because it is a worthy work in itself, but only because it receives the promised mercy.
~BOC, AP, IV (II), 53-56

The Holy Spirit bestows, increases, and strengthens faith as He makes us holy as we abide in faith...

But the Holy Spirit carries on His work without ceasing to the Last Day.  For that purpose He has appointed a congregation upon earth by which He speaks and does everything.  For He has not yet brought together all His Christian Church or granted all forgiveness.  Therefore, we believe in Him who daily brings us into the fellowship of this Christian Church through the Word. Through the same Word and the forgiveness of sins He bestows, increases, and strengthens faith.  So when He has done it all, and we abide in this and die to the world and to all evil, He may finally make us perfectly and forever holy.  Even now we expect this in faith through the Word.
~BOC, LC, II, 61-62

The worship and divine service of the Gospel is to receive gifts from God...

But because Christ's righteousness is given to us through faith, faith is righteousness credited to us.  In other words, it is that by which we are made acceptable to God on account of the credit and ordinance of God, as Paul says, "Faith is counted as righteousness" (Romans 4:3,5).  Although, because certain hard-to-please people, we must say technically:  Faith is truly righteousness, because it is obedience to the Gospel.  For it is clear that obedience to the command of a superior is truly a kind of distributive justice.  This obedience to the Gospel is credited for righteousness. So, only become of this--because we grasp Christ as the Atoning Sacrifice--are good works, or obedience to the Law, pleasing.  We do not satisfy the Law, but for Christ's sake this is forgiven us, as Paul says, "There is therefore now no condemnation for those who are in Christ Jesus" (Romans 8:1). This faith gives God the honor, give God that which is His own.  By receiving the promises of God, it obeys Him.  Just as Paul also says, "No distrust made him waver concerning the promise of God, but he grew strong in his faith as he gave glory to God" (Romans 4:20).  So the worship and divine service of the Gospel is to receive gifts from God.  On the contrary, the worship of the Law is to offer and present our gifts to God.  However, we can offer nothing to God unless we have first been reconciled and born again. This passage, too, brings the greatest comfort, as the chief worship of the Gospel is to desire to receive the forgiveness of sins, grace, and righteousness.
~BOC, AP, V (III), 186-189

All confidence is empty, except confidence in mercy...

In the Lord's Prayer the saints ask for the forgiveness of sins.  Therefore, even the saints have sins.  The innocent shall not be innocent.

"For the LORD your God is a consuming fire, a Jealous God." (Deuteronomy 4:24)

"Be silent, all flesh, before the Lord." (Zechariah 2:13)

"All flesh is grass, and all its beauty is like the flower of the field.  The grass withers, the flower fades when the breath of the Lord blows on it." (Isaiah 40:6-7)

Namely, flesh and righteousness of the flesh cannot endure God's judgment.  Jonah 2:8 also says, "Those who pay regard to vain idols forsake their hopes of steadfast love," that is, all confidence is empty, except confidence in mercy.  Mercy delivers us; our own merits, our own efforts, do not.  So Daniel also prays:

"For we do not present our pleas before You because of our righteousness, but because of Your great mercy.  O Lord, hear; O Lord, forgive.  O Lord, pay attention and act.  Delay not, for Your own sake, O my God, because Your city and Your people are called by Your name." (Daniel 9:18-19)

So Daniel teaches us in praying to seize mercy, that is, to trust in God's mercy not our own merits before God.
~BOC, AP, V (III), 208-210