Matteo 5:8

But hypocritical behavior will not stand the test of His scrutiny: Blessed are the pure in heart; for they shall see God.

A mere outward purity in keeping the ceremonial injunctions of the Law is not sufficient in the economy of God. He desires such hearts as keep themselves pure, unsullied with the lust of the flesh, the lust of the eyes, and the pride of life. Isaiah 1:16; James 4:8; 2 Corinthians 6:17 But this purity finds its expression also in single-mindedness of purpose which throws off every restraining, distracting thought and seeks the Lord and His kingdom with undivided heart, Philippians 2:12.

Happy, blessed are they that are found practicing such purity, for their reward again outstrips their fondest hopes. Even in this life they shall see God with the eyes of the spirit, lifting them up, in joyful confidence, to the God of their salvation, Isaiah 17:7; Micah 7:7; Psalms 25:15.

But the very essence of heavenly bliss will be the seeing of God face to face in the life to come, Psalms 17:15; Psalms 42:3; Job 19:27.