One of the usual names for God is "Creator." Both reason and revelation assure us that everything outside of God has been created, or brought into existence from nothingness by His almighty power. Moreover, after He has created something, God continues to keep it in existence; this is called divine conservation.
In the first chapter of the Bible we read that in the beginning God created heaven and earth, and then the Sacred Scripture tells us that in the course of six days God made the various elements of the universethe sun and moon and stars, the plants and the animals. and finally man. These six "days" need not be understood as days of twentyfour hours eachthey may each have been periods of many thousands of years in duration.
Before He created men, God created another class of intellectual beings, known as angelsspirits without bodies, endowed with great perfections, particularly with profound intelligence. God wished the angels to share His supernatural happiness in heaven, but He wished them first to merit this privilege by their own free actions. Hence, while He raised the angels to the supernatural order by giving them sanctifying grace, God did not admit them at once to the beatific vision but imposed on them a test of their fidelity. Many of the angels were faithful to God; as a reward they were admitted immediately to the everlasting joys of heaven. Their leader was St. Michael. Others, led by Lucifer, who is now called Satan or Beelzebub, in their willful pride rebelled against God. St. Thomas Aquinas, the great theologian, taught that the wicked angels committed sin either by rejecting the supernatural happiness to which God called them because they were satisfied with their own natural perfections, or by desiring to attain to supernatural happiness by their natural powers. Those sinful angels were cast into hell for all eternity and are now called devils.
The good angels, who praise and enjoy God in heaven, are employed by Him in the service of mankind. Many passages of Scripture record that God's designs for the human race were carried out through the ministry of angels. This was especially the case in connection with the Incarnation. The angel Gabriel announced to our Lady that she was to be the Mother of the divine Redeemer; angels proclaimed His birth to the shepherds on the first Christmas night; an angel warned St. Joseph of Herod's murderous plan and bade him take the Child and His Mother into Egypt, and later informed him of Herod's death and commanded the Holy Family to return angels ministered to Our Lord after His threefold temptation by the devil, an angel comforted Him during His agony in the garden; angels announced His Resurrection and His Ascension into heaven.
In His goodness, God protects us by the ministry of angels. It is commonly believed that each individual has a special guardian angel, although it is not taught by the Church as an article of faith. Our angel guardian accompanies us from birth until death, praying for us in a special way, inspiring us with good thoughts, striving to protect us from dangers of body and of soul. On October 2nd the Church celebrates a feast in honor of the Guardian Angels. There are also three feasts in the course of the year to honor the three angels whose names we know from the Sacred ScriptureSt. Michael (September 29th), St. Gabriel (March 24th), and St. Raphael (October 24th). There is also a feast on May 8th to honor an extraordinary apparition of St. Michael.
God allows the devils to tempt human beings by working on their imagination. Sometimes the devil is permitted by God to attack a human being more directly by obsession (from without) or by possession (from within the body). Sometimes very holy persons were tormented in this way. The devil can never force a person to commit sin; God will always give us sufficient grace to resist temptation.
RESOLUTION: Resolve to think of your guardian angel at least once a day, either in your morning or in your night prayers. Thank him for his protection, ask him to continue his loving care for you, so that one day you may be with him in heaven.