John Wesley comments on what it means to be pure of heart from one of his sermons on the Sermon on the Mount.
“The pure in heart” are they whose hearts God hath “purified even as he is pure;” who are purified, through faith in the blood of Jesus, from every unholy affection; who, being “cleansed from all filthiness of flesh and spirit, perfect holiness in the” loving “fear of God.” They are, through the power of his grace, purified from pride, by the deepest poverty of spirit; from anger, from every unkind or turbulent passion, by meekness and gentleness; from every desire but to please and enjoy God, to know and love him more and more, by that hunger and thirst after righteousness which now engrosses their whole soul: So that now they love the Lord their God with all their heart, and with all their soul, and mind, and strength.
Words on love that set the soul in the right direction.
O let your heart be whole with God! Seek your happiness in him and him alone. Beward that you cleave not to the dust! “This earth is not your place.” See that you use this world as not abusing it; use the world, and enjoy God. Sit as loose to all things here below, as if you were a poor beggar. Be a good steward of the manifold gifts of God; that when you are called to give an account of your stewardship, he may say, “Well done, good and faithful servant, enter thou into the joy of thy Lord!”
Wesley’s sermon ‘Salvation by Faith’ opens like this:
All the blessings which God hath bestowed upon man, are of his mere grace, bounty, or favor; his free, undeserved favor, favor altogether undeserved; man having no claim to the least of his mercies. It was free grace that “formed man of dust of the ground, and breathed into him a living soul”, and stamped on that soul the image of God, and “put all things under his feet”. The same free grace continues to us, at this day, life and breath, and all things. For there is nothing we are, or have, or do, which can deserve the least thing at God’s hand. “All our works, thou, oh God, has wrought in us.” These, therefore, are so many more instances of free mercy; and, whatever righteousness may be found in man, this is also the gift of God….
If then sinful men find favor with God, it is “grace upon grace”…Grace is the source, faith is the condition, of salvation.
It’s tough to argue with the Bible, or Wesley’s exegesis.