Isaiah 55:10-11 / Matthew 6:7-15
In the RCIA process towards baptism, the catechumens are presented with the Creed and the Lord's Prayer.
The Creed symbolizes the heart of the Church's faith and the Lord's prayer symbolizes the heart of the Church's prayer.
Indeed as it is stated, it is the Lord's prayer. Our Lord Jesus taught that prayer to His disciples.
At Mass, the priest would proceed with the Communion Rite with these words - "At the Saviour's command, and formed by divine teaching, we dare to say ... "
Yes, the prayer has divine origins and it also has divine purposes.
As the 1st reading puts it, the Word from the mouth of God does not return to Him empty, without carrying out and succeeding in what it was sent to do.
Hence when we pray the Lord's Prayer, it is not just an ordinary prayer; it is THE prayer taught by Jesus.
When we pray that prayer, then we must be aware of the divine purposes of God for us and we have to carry it out, and He will give us the grace to fulfill His will for us.
So when we pray the Lord's prayer, let us pray it reverently, let us pray it sincerely, and let us also be prepared to forgive others so that we too will be forgiven.