Weekly Catechism for 2018 (Heidelberg 1563): LORD’S DAY 45
116. Why is Prayer necessary for Christians?
Because it is the chief part of the thankfulness which God requires of us; and because God will give His grace and Holy Spirit only to such, as earnestly and without ceasing, beg them from Him, and render thanks unto Him for them.
117. What belongs to such prayer, as God is pleased with and will hear?
First, that from the heart we call only upon the one true God, who has revealed Himself to us in His word, for all that He has commanded us to ask of Him; secondly, that we thoroughly know our need and misery, so as to humble ourselves before the face of His Divine Majesty; thirdly, that we be firmly assured, that withstanding our unworthiness He will, for the sake of Christ our Lord, certainly hear our prayer, as He has promised us in His word.
118. What has God commanded us to ask of Him?
All things necessary for soul and body, which Christ our Lord has comprised in the prayer taught us by Himself.
119. What is the Lord’s Prayer?
Our Father which art in heaven: Hallowed by Thy name. Thy kingdom come. Thy will be done in earth, as it is in heaven. Give us this day our daily bread. And forgive us our debts, as we forgive our debtors. And lead us not into temptation; but deliver us from evil. For Thine is the kingdom, and the power, and the glory, for ever. Amen.