Pure in heart. — Here, as with the poor in spirit, the noun determines the region in which the purity is to be found — the “heart” as representing desires and affections, as the “spirit” represents the will and higher personality. The purity so described is not that which was the ideal of the Pharisee, outward and ceremonial, nor, again, was it limited, as the common language of Christians too often limits it, to the absence of one special form of sensual sin; but it excluded every element of baseness — the impurity of hate or greed of gain, no less than that of lust. Not without cause, however, has the evil of the latter sin so overshadowed the others that it has almost monopolised the name. No single form of evil spreads its taint more deeply than that which “lets in contagion to the inward parts.”
Shall see God. — Does the promise find its fulfilment only in the beatific vision of the saints in glory, seeing God as He is (1 John 3:2), knowing even as also we are known (1 Corinthians 13:12)? Doubtless there, and there only, will be the full fruition which now we wait for; but “purity of heart,” so far as it exists, brings with it the power of seeing more than others see in all through which God reveals Himself — the beauty of nature, the inward light, the moral order of the world, the written word, the life and teaching of Christ. Though we see as yet “through a glass,” as in a mirror that reflects imperfectly, yet in that glass we behold “the glory of the Lord” (1 Corinthians 13:12; 2 Corinthians 3:18).