Summary: Blessed are those whose hearts are pure.
God blesses those people whose hearts are pure. They will see Him!
Let’s take a few moments to define purity. Purity may be described or defined in several of the following manners:
Purity is prized in our society. Think about some of the following things:
The more purity the item has the greater it’s value. I find it ironic that even in today’s morally flawed society, Virginity is still prized and sought after in a mate.
Ultimately purity sets apart the very best. For this reason God Demands Purity. Consider the Old Testament instructions for the building of the temple and it’s furnishings. Gold, oil, wood, etc…the finest of materials. Instructions for sacrifices - spotless lambs without physical abnormalities or defect. The emphasis on cleansing and purification. For example cleansing before sacrifice and cleansing after war. Consider Numbers 31:19-24 (quickview)  for a moment:
And all of you who have killed anyone or touched a dead body must stay outside the camp for seven days. You must purify yourselves and your captives on the third and seventh days. Also, purify all your clothing and everything made of leather, goat hair, or wood." Then Eleazar the priest said to the men who were in the battle, "The LORD has given Moses this requirement of the law: Anything made of gold, silver, bronze, iron, tin, or lead – that is, metals that do not burn – must be passed through fire in order to be made ceremonially pure. These metal objects must then be further purified with the water of purification. But everything that burns must be purified by the water alone. On the seventh day you must wash your clothes and be purified. Then you may return to the camp."
God sets a high priority on purity. The greatest level of purity deals with the inside of a man. Purity of the Heart. Consider the importance of purity. Outward appearances may be deceiving a man can have pure actions, but wicked thoughts. Purity is God’s requirement for fellowship with Him. Look at Psalm 24:3-6 (quickview) :
Who may climb the mountain of the LORD? Who may stand in his holy place? Only those whose hands and hearts are pure, who do not worship idols and never tell lies. They will receive the LORD’s blessing and have right standing with God their savior. They alone may enter God’s presence and worship the God of Israel.
How can a mere mortal stand before God and claim to be righteous? Who in all the earth is pure?
All of us have sinned and fallen short of God’s glory.
Everything is pure to those whose hearts are pure. But nothing is pure to those who are corrupt and unbelieving, because their minds and consciences are defiled.