We honor the remains of the Saints: 
        1) Because their bodies were in an exalted degree the temples of the Holy Ghost 
        2) Because they will rise in great glory on the Last Day.

The first Commandment of God does not forbid us to pray to the Saints.  When we pray to God, we ask Him to help us by His Almighty power.  When we pray to the Saints, we ask them to help us by their prayers.  “And the smoke of the incense of the prayers of the Saints ascended up before God from the hand of the Angel.” (Apoc. 8:4).
We pray to the Saints because, being the special friends of God, they can obtain favors for us from Him.
 

The second Commandment is: Thou shalt not take the name of the Lord thy God in vain.

The second Commandment forbids all profanation of the Holy Name of God.

We profane or dishonor the Name of God:
          By pronouncing it irreverently
          By cursing
          By blaspheming
          By sinful swearing
          By breaking a vow.

We pronounce the name of God irreverently whenever we say it carelessly or with disrespect.
 By cursing we mean wishing evil to one’s self or to others. 
By blasphemy we mean using insulting language against God, the Saints, or holy things. 
To swear or take an oath means to call God to witness that we are speaking the truth, or that we intend to do what we promise. 

 We swear sinfully: 
         When we swear falsely
         When we swear without necessity
         When we swear to do evil.
To swear falsely, especially in court, is perjury and is a mortal sin.

A Vow is a promise freely made to God by which we bind ourselves, under penalty of sin, to something that is pleasing to Him.  The three great vows of religion are: Poverty, Chastity, and Obedience.
 

The third Commandment is: Remember that thou keep holy the Sabbath Day.

The Sabbath Day is Saturday, the seventh day of the week.  It is the day which was kept holy in the Old Testament.  In the New Testament, Sunday and not the Sabbath is kept holy.  This change was made by the Apostles.

The Church commands us to keep Sunday instead of the Sabbath Day holy:
   Because Jesus arose from the tomb on a Sunday
   Because the Holy Spirit descended upon the Apostles on that day.

We keep Sunday holy by  praying and by not doing servile work.  Servile works are those which are commonly performed by laborers, trades-people, hospital workers, etc.  They are lawful on Sunday when the honor of God, the good of neighbor, or necessity requires them.
 

The fourth Commandment is: Honor thy father and thy mother.

Children must honor father and mother because they take the place of God for them, and are, next to Him, their greatest benefactors. 
Children honor father and mother:
     1) by loving them
     2) by obeying them
     3) by praying for them. 

Children sin against the fourth Commandment by treating their parents harshly; and by not obeying them. 

Children who honor their parents may expect the blessing of God in this life, and eternal happiness in the next.  “Honor thy father and thy mother, that thou mayest be longlived upon the land.” (Ex. 21:17).
The fourth Commandment not only obliges children to honor father and mother, but also their superiors.  Our superiors are our teachers, employers, and civil authorities.  We are obliged to honor and obey them because their authority comes from God and because they take His place. 
Children are not obliged to obey their parents or superiors when they command them to commit sin.

Jesus was obedient to Mary and Joseph “And He went down with them, and came to Nazareth, and was subject to them.” (Luke 2:51).
 

The fifth Commandment is: Thou shalt not kill.

The fifth Commandment forbids us to injure our neighbor or ourselves in body and in soul.
We injure our neighbor in body:
          By taking his life (homicide, murder, abortion)
          By shortening his life
          By striking or wounding him.

We injure our neighbor in soul by giving him scandal. 
Scandal means to do evil in the presence of others so as to lead them into sin.  “Woe to the world because of scandals.  For it must needs be that scandals come: but nevertheless woe to that man by whom the scandal cometh.” (Matt. 18.7).
Whenever we have injured our neighbor in body or soul, we are bound in conscience to try to make good the evil we have done.

We sin against our own life:
         By taking it (suicide)
         By endangering it without necessity
         By injuring our health.

We injure our health:
         By neglecting it
         By violent anger
         By intemperance in eating or drinking.

We sin in thought against the fifth Commandment:
         By hating our neighbor
         By desiring revenge
         By wishing him death or evil. 
"Whosoever hateth his brother is a murderer." (1Jn. 3:15).
 

The sixth Commandment of God is: Thou shalt not commit adultery.

This Commandment forbids all sins against purity and modesty.  “Be ye holy, because I the Lord your God am holy.” (Lev. 19:2). “Know ye not that you are the temples of God, and that the Spirit of God dwelleth in you?” (1 Cor. 3:16).

We sin against the sixth Commandment of God:
        1) By impure thoughts and desires
        2) By impure words or conversation
        3) By impure looks
        4) By reading impure books
        5) By impure actions.

We should be always on our guard against sins of impurity, because none are more shameful and none more severely punished by God.  He punished the people of Noah’s time with a flood for sins of impurity. (Gen. 6:7).  He destroyed the shameful cities of Sodom and Gomorrha with brimstone and fire. (Gen. 19).

To avoid sins of impurity we should:
       1) Say our prayers regularly
       2) Keep away from bad company
       3) Pray to God, the Blessed Virgin Mary, and our Guardian Angel in times of temptation, and
           remember that God sees everything.
"Blessed are the clean of heart: for they shall see God.”  (Matt. 5:8).