"And when you pray, you shall not be like the hypocrites. For they love to pray standing in the synagogues and on the corners of the streets, that they may be seen by men. Assuredly, I say to you, they have their reward. But you, when you pray, go into your room, and when you have shut your door, pray to your Father who is in the secret place; and your Father who sees in secret will reward you openly." (Matthew 6:5-6)
Commentary: Comment: "Observe again that our Lord takes it for granted, that all who call themselves His disciples will PRAY. He assumes this also as a matter of course. He only gives directions as to the best way of praying. This is another lesson which deserves to be continually remembered. It teaches plainly that prayerless people are not genuine Christians. It is not enough to join in the prayers of the congregation on Sundays, or attend the prayer of a family on week-days. There must be private prayer also. Without this we may be outward members of Christ's church, but we are not living members of Christ. ... In PRAYING, the principal object to be sought, is to be alone with God. We should endeavor to find some place where no mortal eye sees us, and where we can pour out our hearts with the feeling that no one is looking at us but God. This is a rule which many find it very difficult to follow. The poor man and the servant often find it almost impossible to be really alone. But it is a rule which we must all make great efforts to obey. Necessity, in such cases, is often the mother of invention. When a person has a real desire to find some place, where he can be in secret with his God, he will generally find a way.
In all our duties, whether giving, or praying, the great thing to be kept in mind is, that we have to do with a heart-searching and all-knowing God. Everything like formality, affectation, or mere bodily service, is abominable and worthless in God's sight. He takes no account of the quantity of money we give, or the quantity of words we use. The one thing at which His all-seeing eye looks is the nature of our motives, and the state of our hearts. "Our Father sees in secret."
May we all remember these things. Here lies a rock, on which many are continually making spiritual shipwreck. They flatter themselves that all must be right with their souls, if they only perform a certain amount of "religious duties." They forget that God does not regard the quantity, but the quality of our service. His favor is not to be bought, as many seem to suppose, by the formal repetition of a number of words, or the self-righteous payment of a sum of money to a charitable institution. Where are our hearts? Are we doing all, whether we give or pray, "as to the Lord, and not to men?" Do we realize the eye of God? Do we simply and solely desire to please Him, who "sees in secret," and by whom "actions are weighed?" (1 Sam. 2:3.) Are we sincere? These are the sort of questions, with which we should daily ply our souls." - JC Ryle