Jesus warns that righteousness must not be practiced before people in order to be seen, because those who do so have already received their reward. When giving to the needy, one should not sound a trumpet like the hypocrites; the left hand should not know what the right hand is doing, and the Father who sees in secret will reward. When praying, one should not stand on street corners to be seen but go into a room and close the door, and not heap up empty phrases like the pagans, for the Father knows what they need before they ask.
Then Jesus teaches how to pray. The Lord's Prayer asks for the hallowing of the Father's name, the coming of his kingdom and the doing of his will on earth as in heaven; then daily bread, forgiveness of debts as they also forgive, and not to be led into temptation but delivered from evil. Jesus stresses that the Father will forgive those who forgive others and will not forgive those who do not. On fasting, he asks that they not show a gloomy face but wash and anoint their heads, so that only the Father sees.
Then he calls them not to store up treasures on earth, where moth and rust destroy and thieves steal, but in heaven; where the treasure is, the heart will be. The eye is the lamp of the body, and no one can serve two masters: God and money. So Jesus says not to be anxious about what to eat, drink or wear: look at the birds, which do not sow, yet the Father feeds them, and the lilies of the field, which God clothes. If God cares for them, how much more for his children. The pagans seek those things, but the Father knows they need them. Seek first the kingdom of God and his righteousness, and all these things will be added. Each day has enough trouble of its own.