A good dictionary will define pure as "conforming absolutely to a standard of quality; faultless." When a thing is pure, it is unmixed, unalloyed, unadulterated, uncontaminated or undefiled by anything foreign to itself. Depending upon the context, it can take on such senses as clear, entire, true, perfect, sterling, chaste, virginal, immaculate, spotless, untainted, good, moral, impeccable, honorable, principled, ethical, guiltless, flawless, sincere and many more.
Jesus says in Matthew 5:8, "Blessed are the pure in heart, for they shall see God." Obviously, the quality of the heart is the issue in this beatitude. Proverbs 4:23 reads, "Keep your heart with all diligence, for out of it spring the issues of life." Our Father directly addresses the book of Proverbs to His sons (Proverbs 1:7). It assumes our hearts have been purified by His initial cleansing, that we have received His Spirit and are in the process of sanctification and going on to perfection. Ezekiel explains this process:
Then I will sprinkle clean water on you, and you shall be clean; I will cleanse you from all your filthiness and from all your idols. I will give you a new heart and put a new spirit within you; I will take the heart of stone out of your flesh and give you a heart of flesh. I will put My Spirit within you and cause you to walk in My statutes, and you will keep My judgments and do them. (Ezekiel 36:25-27)
So.. That’s it! That’s the goal of the Christian life! That’s what we are living for – that we may live our life in such a way that we see God. If we see God, that will open up the treasure trove of all the blessings, not only for eternity, but also for life here and now. And the key to open that treasure trove is a pure heart!
This is the most central and the most significant of all the beatitudes mentioned in this fifth chapter of Matthew. You cannot be poor in spirit without having a pure heart. You cannot mourn for the things that displease God without having a pure heart. You cannot be meek, you cannot hunger and thirst for righteousness, you cannot be merciful, you cannot be a peacemaker or be prepared to stand persecution for the name of Christ without having a pure heart. Actually, this is one of the most central principles of the Christian life that we see in the whole Bible. The heart of the matter is the matter of the heart.
1. Living by the rule of God, living a life that is pleasing to God.
2. Living for the purpose of God, having a single-minded devotion to God.