I should learn the Lord’s Prayer because Jesus taught it to his disciples as both a practice and a pattern for prayer to God the Father. (Matthew 6:5–8; Luke 11:1, 5–13)
Basil the Great
For perhaps He delays purposely, to redouble your earnestness and coming to him, and that you may know what the gift of God is, and may anxiously guard what is given. For whatever a man acquires with much pains he strives to keep safe, lest with the loss of that he should lose his labor likewise.