Blessed are] Psalms 24:4.
the pure in heart] The single-hearted and sincere, who are not double minded, 1 Timothy 1:5. James 1:8. 1 Peter 1:22.
they shall see God] They shall converse with him familiarly in heaven: or, they shall see some glorious signe of his presence there; for his Essence is invisible and incomprehensible, Hebrews 12:14.