What is the Roman Catholic Church's belief?

Roman Catholic Answer

Christian teachings would be summarized in the Nicene Creed:

We believe (I believe) in one God, the Father Almighty, maker of heaven and earth, and of all things visible and invisible. And in one Lord Jesus Christ, the only begotten Son of God, and born of the Father before all ages. (God of God) light of light, true God of true God. Begotten not made, consubstantial to the Father, by whom all things were made. Who for us men and for our salvation came down from heaven. And was incarnate of the Holy Ghost and of the Virgin Mary and was made man; was crucified also for us under Pontius Pilate, suffered and was buried; and the third day rose again according to the Scriptures. And ascended into heaven, sits at the right hand of the Father, and shall come again with glory to judge the living and the dead, of whose Kingdom there shall be no end. And (I believe) in the Holy Ghost, the Lord and Giver of life, who proceeds from the Father (and the Son), who together with the Father and the Son is to be adored and glorified, who spoke by the Prophets. And one holy, catholic, and apostolic Church. We confess (I confess) one baptism for the remission of sins. And we look for (I look for) the resurrection of the dead and the life of the world to come. Amen."

in the Decalogue:

Ten Commandments of God
Exodus XX
1. I am the Lord your God, who brought you out of the land of Egypt, out of the house of bondage. You shall have no other gods before me. You shall not make for yourself a graven image, or any likeness of anything that is in heaven above, or that is in the earth beneath, or that is in the water under the earth; you shall not bow down to them or serve them. For I the Lord your God am a jealous God, visiting the iniquity of the fathers upon the children to the third and the fourth generation of those who hate me, but showing steadfast love to thousands of those who love me and keep my commandments.
2. You shall not take the name of the Lord your God in vain; for the Lord will not hold him guiltless who takes his name in vain.
3. Remember the Sabbath day, to keep it holy. Six days you shall labor, and do all your work; but the seventh day is a Sabbath to the Lord your God; in it you shall not do any work, you, or your son, or your daughter, your manservant, or your maidservant, or your cattle, or the sojourner who is within your gates; for in six days the Lord made heaven and earth, the sea, and all that is in them, and rested the seventh day; therefore the Lord blessed the Sabbath day and hallowed it.
4. Honor your father and your mother, that your days may be long in the land which the Lord your God gives you.
5. You shall not kill.
6. You shalt not commit adultery.
7. You shalt not steal.
8. You shalt not bear false witness against your neighbor.
9. You shalt not covet your neighbor's wife.
10. You shalt not covet your neighbor's goods.


In the sermon on the Mount (Matthew, chapters five through seven)

and in the works of mercy:

The Spiritual Works of Mercy

To admonish the sinner,
To instruct the ignorant,
To counsel the doubtful,
To comfort the sorrowful,
To bear wrongs patiently,
To forgive all injuries,
To pray for the living and the dead.

The Corporal Works of Mercy
Matt 25:31

To feed the hungry,
To give drink to the thirsty,
To clothe the naked,
To visit the prisoners,
To shelter the homeless
To visit the sick,
To bury the dead
To give alms to the poor.