And when you pray, do not be like the hypocrites. For they love to pray standing in the synagogues and on the street corners to be seen by men. Truly I tell you, they already have their full reward.
5. When thou shalt pray He now gives the same instruction as to prayer, which he had formerly given as to alms. It is a gross and shameful profanation of the name of God, when hypocritcs, in order to obtain glory from men, pray in public, or at least make a pretense of praying. But, as hypocrisy is always ambitious, we need not wonder that it is also blind.
In prayer we have more immediately to do with God than in giving alms, and therefore are yet more concerned to be sincere, which is what we are here directed to. When thou prayest (Mat 6:5). It is taken for granted that all the disciples of Christ pray. As soon as ever Paul was converted, behold he prayeth.
Commenting on Matthew 6:5-8
And when thou prayest, thou shalt not be as the hypocrites,.... As the Scribes and Pharisees; whose posture in prayer, the places they chose to pray in, and the view they had therein, are particularly taken notice of: for they love to pray standing in the synagogues, and in the corners of the streets, that they may be seen of men.