Christianity:
Christianity is thought to be the world's largest practiced religion with 1/4-1/3 of the world's population practicing some form of Christianity. Based on the teachings of Jesus in the New Testament, there are many varying ways that Christians worship. The Lord's Prayer, also known as the Our Father or Pater noster, is probably the best-known prayer in Christianity. An estimated 2 billion Christians including Catholic, Protestant and Eastern Orthodox read, recite, or sing this short prayer in hundreds of languages.

Pray:
Our Father, who art in heaven,
Hallowed be thy Name.
Thy kingdom come.
Thy will be done,
On earth as it is in heaven.
Give us this day our daily bread.
And forgive us our trespasses,
As we forgive those
who trespass against us.
And lead us not into temptation,
But deliver us from evil.
For thine is the kingdom,
and the power,
and the glory,
for ever and ever.
Amen.

St. Francis
This famous & beloved prayer is attributed to St. Francis, a 13th century saint but it cannot be traced back further than 1912. It is said to have been penned anonymously on the back of a holy card with
St. Francis on it.
Pray:

The Prayer of St.Francis
Lord make me an instrument of your peace

Where there is hatred,
Let me sow love;
Where there is injury,pardon;
Where there is error, truth;
Where there is doubt, faith;
Where there is despair, hope;
Where there is darkness, light;
And where there is sadness, Joy.

O Divine Master grant that I may not so much seek to be consoled
As to console;
To be understood,as to understand;
To be loved, as to love.
For it is in giving that we receive,
It is in pardoning that we are pardoned,
And it is in dying that we are born to eternal life.